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linuxPackages.ipu6-drivers: add patch to make driver work with unpatched kernel >= 6.1.7
This commit is contained in:
betaboon
parent
c54e33345f
commit
44c59fea72
2 changed files with 371 additions and 1 deletions
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@ -16,6 +16,11 @@ stdenv.mkDerivation rec {
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hash = "sha256-TKo04+fqY64SdDuWApuzRXBnaAW2DReubwFRsdfJMWM=";
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};
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patches = [
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# https://github.com/intel/ipu6-drivers/pull/84
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./pr-84-unpatched-upstream-compatiblity.patch
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];
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postPatch = ''
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cp --no-preserve=mode --recursive --verbose \
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${ivsc-driver.src}/backport-include \
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@ -47,6 +52,6 @@ stdenv.mkDerivation rec {
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license = lib.licenses.gpl2;
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maintainers = with lib.maintainers; [ hexa ];
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platforms = [ "x86_64-linux" ];
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broken = kernel.kernelOlder "5.15";
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broken = kernel.kernelOlder "6.1.7";
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};
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}
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@ -0,0 +1,365 @@
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From 8f4346915bb7e3a3ad3eea2c24b6da09dac257b2 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Tue, 29 Nov 2022 15:06:23 +0100
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Subject: [PATCH 1/4] sensors: Use clk-framework instead of a "clken" GPIO
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Use the clk-framework to get a clk-provider reference and use
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clk_prepare_enable() / clk_disable_unprepare() to control the clk.
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This replace modelling the clock as a "clken" GPIO, which is not a valid
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way to model it when the clk is e.g. generated by the clk-generator of
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a TPS68470 PMIC.
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This relies on the following upstream bugfix for the INT3472 clk provider:
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cf5ac2d45f6e4d11ad78e7b10ae9a4121ba5e995
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"platform/x86: int3472/discrete: Ensure the clk/power enable pins are in output mode"
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This patch is available since upstream kernel 6.1.7, so the new
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code is only enabled for LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 7)
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This allow susing the IPU6 sensor drivers with the upstream int3472
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driver with unmodified upstream kernels >= 6.1.7 .
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/media/i2c/hm11b1.c | 18 ++++++++++++++++++
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drivers/media/i2c/ov01a1s.c | 18 ++++++++++++++++++
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2 files changed, 36 insertions(+)
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diff --git a/drivers/media/i2c/hm11b1.c b/drivers/media/i2c/hm11b1.c
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index 1cc5cd761fbf..e14810bdd612 100644
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--- a/drivers/media/i2c/hm11b1.c
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+++ b/drivers/media/i2c/hm11b1.c
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@@ -468,8 +468,13 @@ struct hm11b1 {
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struct gpio_desc *reset_gpio;
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/* GPIO for powerdown */
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struct gpio_desc *powerdown_gpio;
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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/* GPIO for clock enable */
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struct gpio_desc *clken_gpio;
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+#else
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+ /* Clock provider */
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+ struct clk *clk;
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+#endif
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/* GPIO for privacy LED */
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struct gpio_desc *pled_gpio;
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#endif
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@@ -508,7 +513,14 @@ static void hm11b1_set_power(struct hm11b1 *hm11b1, int on)
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return;
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gpiod_set_value_cansleep(hm11b1->reset_gpio, on);
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gpiod_set_value_cansleep(hm11b1->powerdown_gpio, on);
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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gpiod_set_value_cansleep(hm11b1->clken_gpio, on);
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+#else
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+ if (on)
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+ clk_prepare_enable(hm11b1->clk);
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+ else
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+ clk_disable_unprepare(hm11b1->clk);
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+#endif
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gpiod_set_value_cansleep(hm11b1->pled_gpio, on);
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msleep(20);
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#elif IS_ENABLED(CONFIG_POWER_CTRL_LOGIC)
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@@ -1093,12 +1105,18 @@ static int hm11b1_parse_dt(struct hm11b1 *hm11b1)
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return ret;
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}
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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hm11b1->clken_gpio = devm_gpiod_get(dev, "clken", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(hm11b1->clken_gpio);
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if (ret < 0) {
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dev_err(dev, "error while getting clken_gpio gpio: %d\n", ret);
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return ret;
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}
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+#else
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+ hm11b1->clk = devm_clk_get_optional(dev, "clk");
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+ if (IS_ERR(hm11b1->clk))
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+ return dev_err_probe(dev, PTR_ERR(hm11b1->clk), "getting clk\n");
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+#endif
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hm11b1->pled_gpio = devm_gpiod_get(dev, "pled", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(hm11b1->pled_gpio);
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diff --git a/drivers/media/i2c/ov01a1s.c b/drivers/media/i2c/ov01a1s.c
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index e4477625ce3b..628a1dd83ddf 100644
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--- a/drivers/media/i2c/ov01a1s.c
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+++ b/drivers/media/i2c/ov01a1s.c
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@@ -317,8 +317,13 @@ struct ov01a1s {
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struct gpio_desc *reset_gpio;
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/* GPIO for powerdown */
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struct gpio_desc *powerdown_gpio;
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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/* GPIO for clock enable */
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struct gpio_desc *clken_gpio;
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+#else
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+ /* Clock provider */
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+ struct clk *clk;
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+#endif
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/* GPIO for privacy LED */
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struct gpio_desc *pled_gpio;
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#endif
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@@ -339,7 +344,14 @@ static void ov01a1s_set_power(struct ov01a1s *ov01a1s, int on)
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return;
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gpiod_set_value_cansleep(ov01a1s->reset_gpio, on);
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gpiod_set_value_cansleep(ov01a1s->powerdown_gpio, on);
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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gpiod_set_value_cansleep(ov01a1s->clken_gpio, on);
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+#else
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+ if (on)
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+ clk_prepare_enable(ov01a1s->clk);
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+ else
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+ clk_disable_unprepare(ov01a1s->clk);
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+#endif
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gpiod_set_value_cansleep(ov01a1s->pled_gpio, on);
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msleep(20);
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#elif IS_ENABLED(CONFIG_POWER_CTRL_LOGIC)
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@@ -945,12 +957,18 @@ static int ov01a1s_parse_dt(struct ov01a1s *ov01a1s)
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return -EPROBE_DEFER;
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}
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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ov01a1s->clken_gpio = devm_gpiod_get(dev, "clken", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(ov01a1s->clken_gpio);
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if (ret < 0) {
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dev_err(dev, "error while getting clken_gpio gpio: %d\n", ret);
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return -EPROBE_DEFER;
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}
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+#else
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+ ov01a1s->clk = devm_clk_get_optional(dev, "clk");
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+ if (IS_ERR(ov01a1s->clk))
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+ return dev_err_probe(dev, PTR_ERR(ov01a1s->clk), "getting clk\n");
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+#endif
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ov01a1s->pled_gpio = devm_gpiod_get(dev, "pled", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(ov01a1s->pled_gpio);
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From b04fdf6433f6b64840d46f92ddf3d6d18e86ede3 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Tue, 29 Nov 2022 23:37:50 +0100
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Subject: [PATCH 2/4] sensors: Make powerdown and reset signals active-low by
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default
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The powerdown and reset functions should be set to 0, as in
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not-powered-down, not-in-reset when the sensor is turned on.
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Adjust the gpiod_set() value parameters for the powerdown_gpio
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and reset_gpio to !on to properly reflect this.
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Typical sensors however have a NRESET aka /RESET pin which needs
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to be driven low to put the device in reset and the have
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a powerup/enable pin rather then a powerdown pin. So at
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the physicical level the pins associated with the reset and
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powerdown functions need to be driven low to put the chip
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in reset / to power the chip down. Mark the pins as active-low
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in the added gpio-lookup table entries for these pin to
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reflect this.
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This double negation has 0 net effect, but it uses the GPIO
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subsystem functionality as intended (setting reset to 0
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on poweron makes lot more sense then setting it to 1 on poweron)
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and it aligns the use of these GPIOs with that of the mainline
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kernel allowing future use of the IPU6 driver with the
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mainline INT3472 driver without needing to patch the mainline
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kernel.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/media/i2c/hm11b1.c | 4 ++--
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drivers/media/i2c/ov01a1s.c | 4 ++--
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drivers/media/i2c/ov2740.c | 2 +-
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...nt3472-support-independent-clock-and-LED-gpios-5.17+.patch | 4 ++--
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patch/int3472-support-independent-clock-and-LED-gpios.patch | 4 ++--
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5 files changed, 9 insertions(+), 9 deletions(-)
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diff --git a/drivers/media/i2c/hm11b1.c b/drivers/media/i2c/hm11b1.c
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index e14810bdd612..652e8f177044 100644
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--- a/drivers/media/i2c/hm11b1.c
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+++ b/drivers/media/i2c/hm11b1.c
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@@ -511,8 +511,8 @@ static void hm11b1_set_power(struct hm11b1 *hm11b1, int on)
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#if IS_ENABLED(CONFIG_INTEL_SKL_INT3472)
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if (!(hm11b1->reset_gpio && hm11b1->powerdown_gpio))
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return;
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- gpiod_set_value_cansleep(hm11b1->reset_gpio, on);
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- gpiod_set_value_cansleep(hm11b1->powerdown_gpio, on);
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+ gpiod_set_value_cansleep(hm11b1->reset_gpio, !on);
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+ gpiod_set_value_cansleep(hm11b1->powerdown_gpio, !on);
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#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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gpiod_set_value_cansleep(hm11b1->clken_gpio, on);
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#else
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diff --git a/drivers/media/i2c/ov01a1s.c b/drivers/media/i2c/ov01a1s.c
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index 628a1dd83ddf..2ce81d04abf6 100644
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--- a/drivers/media/i2c/ov01a1s.c
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+++ b/drivers/media/i2c/ov01a1s.c
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@@ -342,8 +342,8 @@ static void ov01a1s_set_power(struct ov01a1s *ov01a1s, int on)
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#if IS_ENABLED(CONFIG_INTEL_SKL_INT3472)
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if (!(ov01a1s->reset_gpio && ov01a1s->powerdown_gpio))
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return;
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- gpiod_set_value_cansleep(ov01a1s->reset_gpio, on);
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- gpiod_set_value_cansleep(ov01a1s->powerdown_gpio, on);
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+ gpiod_set_value_cansleep(ov01a1s->reset_gpio, !on);
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+ gpiod_set_value_cansleep(ov01a1s->powerdown_gpio, !on);
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#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 7)
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gpiod_set_value_cansleep(ov01a1s->clken_gpio, on);
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#else
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diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
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index 67fb17e08e36..a8bb101776bd 100644
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--- a/drivers/media/i2c/ov2740.c
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+++ b/drivers/media/i2c/ov2740.c
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@@ -596,7 +596,7 @@ static void ov2740_set_power(struct ov2740 *ov2740, int on)
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{
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if (!(ov2740->reset_gpio && ov2740->pled_gpio))
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return;
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- gpiod_set_value_cansleep(ov2740->reset_gpio, on);
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+ gpiod_set_value_cansleep(ov2740->reset_gpio, !on);
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gpiod_set_value_cansleep(ov2740->pled_gpio, on);
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msleep(20);
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}
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diff --git a/patch/int3472-support-independent-clock-and-LED-gpios-5.17+.patch b/patch/int3472-support-independent-clock-and-LED-gpios-5.17+.patch
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index 57373ac85f39..66ed770b68a0 100644
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--- a/patch/int3472-support-independent-clock-and-LED-gpios-5.17+.patch
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+++ b/patch/int3472-support-independent-clock-and-LED-gpios-5.17+.patch
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@@ -65,7 +65,7 @@ index ed4c9d760757..f5857ec334fa 100644
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case INT3472_GPIO_TYPE_RESET:
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ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset",
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- GPIO_ACTIVE_LOW);
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-+ polarity);
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++ polarity ^ GPIO_ACTIVE_LOW);
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if (ret)
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err_msg = "Failed to map reset pin to sensor\n";
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@@ -73,7 +73,7 @@ index ed4c9d760757..f5857ec334fa 100644
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case INT3472_GPIO_TYPE_POWERDOWN:
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ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown",
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- GPIO_ACTIVE_LOW);
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-+ polarity);
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++ polarity ^ GPIO_ACTIVE_LOW);
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if (ret)
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err_msg = "Failed to map powerdown pin to sensor\n";
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diff --git a/patch/int3472-support-independent-clock-and-LED-gpios.patch b/patch/int3472-support-independent-clock-and-LED-gpios.patch
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index a2def0d76852..df70ce4a7117 100644
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--- a/patch/int3472-support-independent-clock-and-LED-gpios.patch
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+++ b/patch/int3472-support-independent-clock-and-LED-gpios.patch
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@@ -65,7 +65,7 @@ index e59d79c7e82f..5cf6dd63d43f 100644
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case INT3472_GPIO_TYPE_RESET:
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ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset",
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- GPIO_ACTIVE_LOW);
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-+ polarity);
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++ polarity ^ GPIO_ACTIVE_LOW);
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if (ret)
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err_msg = "Failed to map reset pin to sensor\n";
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@@ -73,7 +73,7 @@ index e59d79c7e82f..5cf6dd63d43f 100644
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case INT3472_GPIO_TYPE_POWERDOWN:
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ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown",
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- GPIO_ACTIVE_LOW);
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-+ polarity);
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++ polarity ^ GPIO_ACTIVE_LOW);
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if (ret)
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err_msg = "Failed to map powerdown pin to sensor\n";
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From 90d4b2d9cb07292c6a2580572252938a836f4a86 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Thu, 15 Dec 2022 16:00:31 +0100
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Subject: [PATCH 3/4] sensors: Make "pled" GPIO optional
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Starting with kernel 6.3 the mainline int3472 driver models the privacy
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LED device as a LED class device rather then as a GPIO.
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As part of these changed the v4l2-core subdev code in 6.3 turns
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the LED on/off on s_stream() on/off calls on the sensor v4l2-subdev,
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so sensor drivers don't have to take care of this themselves.
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Change the devm_gpiod_get() calls for the "pled" GPIO into
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devm_gpiod_get_optional() calls so that the sensor drivers
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can work with both older kernel (controlling the GPIO) and
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with newer kernels which don't have a "pled" GPIO.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/media/i2c/hm11b1.c | 2 +-
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drivers/media/i2c/ov01a1s.c | 2 +-
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drivers/media/i2c/ov2740.c | 4 +---
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3 files changed, 3 insertions(+), 5 deletions(-)
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diff --git a/drivers/media/i2c/hm11b1.c b/drivers/media/i2c/hm11b1.c
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index 652e8f177044..6257f7987268 100644
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--- a/drivers/media/i2c/hm11b1.c
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+++ b/drivers/media/i2c/hm11b1.c
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@@ -1118,7 +1118,7 @@ static int hm11b1_parse_dt(struct hm11b1 *hm11b1)
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return dev_err_probe(dev, PTR_ERR(hm11b1->clk), "getting clk\n");
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#endif
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- hm11b1->pled_gpio = devm_gpiod_get(dev, "pled", GPIOD_OUT_HIGH);
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+ hm11b1->pled_gpio = devm_gpiod_get_optional(dev, "pled", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(hm11b1->pled_gpio);
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if (ret < 0) {
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dev_err(dev, "error while getting pled gpio: %d\n", ret);
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diff --git a/drivers/media/i2c/ov01a1s.c b/drivers/media/i2c/ov01a1s.c
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index 2ce81d04abf6..1bc6199713f3 100644
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--- a/drivers/media/i2c/ov01a1s.c
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+++ b/drivers/media/i2c/ov01a1s.c
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@@ -970,7 +970,7 @@ static int ov01a1s_parse_dt(struct ov01a1s *ov01a1s)
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return dev_err_probe(dev, PTR_ERR(ov01a1s->clk), "getting clk\n");
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#endif
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- ov01a1s->pled_gpio = devm_gpiod_get(dev, "pled", GPIOD_OUT_HIGH);
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+ ov01a1s->pled_gpio = devm_gpiod_get_optional(dev, "pled", GPIOD_OUT_HIGH);
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ret = PTR_ERR_OR_ZERO(ov01a1s->pled_gpio);
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if (ret < 0) {
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dev_err(dev, "error while getting pled gpio: %d\n", ret);
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diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
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index a8bb101776bd..08f284d4aca1 100644
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--- a/drivers/media/i2c/ov2740.c
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+++ b/drivers/media/i2c/ov2740.c
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@@ -594,8 +594,6 @@ static u64 to_pixels_per_line(u32 hts, u32 f_index)
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|
||||
static void ov2740_set_power(struct ov2740 *ov2740, int on)
|
||||
{
|
||||
- if (!(ov2740->reset_gpio && ov2740->pled_gpio))
|
||||
- return;
|
||||
gpiod_set_value_cansleep(ov2740->reset_gpio, !on);
|
||||
gpiod_set_value_cansleep(ov2740->pled_gpio, on);
|
||||
msleep(20);
|
||||
@@ -633,7 +631,7 @@ static int ov2740_parse_dt(struct ov2740 *ov2740)
|
||||
return ret;
|
||||
}
|
||||
|
||||
- ov2740->pled_gpio = devm_gpiod_get(dev, "pled", GPIOD_OUT_HIGH);
|
||||
+ ov2740->pled_gpio = devm_gpiod_get_optional(dev, "pled", GPIOD_OUT_HIGH);
|
||||
ret = PTR_ERR_OR_ZERO(ov2740->pled_gpio);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "error while getting pled gpio: %d\n", ret);
|
||||
|
||||
From 5ed1980822f0cb4787d1346493d126aad1bf9210 Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Tue, 29 Nov 2022 15:15:15 +0100
|
||||
Subject: [PATCH 4/4] ov01a1s: Drop unused link_freq variable
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Drop the unused link_freq variable, fixing this compiler warning:
|
||||
|
||||
drivers/media/i2c/ov01a1s.c:994:13: warning: unused variable ‘link_freq’ [-Wunused-variable]
|
||||
994 | s64 link_freq;
|
||||
| ^~~~~~~~~
|
||||
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
---
|
||||
drivers/media/i2c/ov01a1s.c | 1 -
|
||||
1 file changed, 1 deletion(-)
|
||||
|
||||
diff --git a/drivers/media/i2c/ov01a1s.c b/drivers/media/i2c/ov01a1s.c
|
||||
index 1bc6199713f3..ab4ff255d4c1 100644
|
||||
--- a/drivers/media/i2c/ov01a1s.c
|
||||
+++ b/drivers/media/i2c/ov01a1s.c
|
||||
@@ -988,7 +988,6 @@ static int ov01a1s_probe(struct i2c_client *client)
|
||||
#if IS_ENABLED(CONFIG_INTEL_VSC)
|
||||
struct vsc_mipi_config conf;
|
||||
struct vsc_camera_status status;
|
||||
- s64 link_freq;
|
||||
#endif
|
||||
|
||||
ov01a1s = devm_kzalloc(&client->dev, sizeof(*ov01a1s), GFP_KERNEL);
|
||||
Loading…
Reference in a new issue