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538a1d740c
The patches were generated from the RPi repo with the following command: git format-patch v6.6.58..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
67 lines
2.1 KiB
Diff
67 lines
2.1 KiB
Diff
From 62faabb61ae152e8289a00ffb3445f4c47777b33 Mon Sep 17 00:00:00 2001
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From: Richard Oliver <richard.oliver@raspberrypi.com>
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Date: Mon, 3 Jun 2024 16:02:41 +0100
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Subject: [PATCH 1250/1350] media: i2c: imx500: Enable LED during SPI transfers
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The Raspberry Pi 'AI Camera' is equipped with an LED. Enable this LED
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during SPI transfers to indicate to the end-user that progress is being
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made during large tramsfers.
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Signed-off-by: Richard Oliver <richard.oliver@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/imx500-overlay.dts | 1 +
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arch/arm/boot/dts/overlays/imx500-pi5-overlay.dts | 1 +
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drivers/media/i2c/imx500.c | 6 ++++++
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3 files changed, 8 insertions(+)
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--- a/arch/arm/boot/dts/overlays/imx500-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/imx500-overlay.dts
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@@ -105,6 +105,7 @@
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&cam_node {
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status = "okay";
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+ led-gpios = <&spi_bridge 19 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&spi_bridge 20 GPIO_ACTIVE_HIGH>;
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clocks = <&clk_aicam_gated>;
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spi = <&spi_bridgedev0>;
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--- a/arch/arm/boot/dts/overlays/imx500-pi5-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/imx500-pi5-overlay.dts
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@@ -110,6 +110,7 @@
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&cam_node {
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status = "okay";
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+ led-gpios = <&spi_bridge 19 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&spi_bridge 20 GPIO_ACTIVE_HIGH>;
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clocks = <&clk_aicam_gated>;
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spi = <&spi_bridgedev0>;
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--- a/drivers/media/i2c/imx500.c
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+++ b/drivers/media/i2c/imx500.c
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@@ -965,6 +965,7 @@ struct imx500 {
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struct clk *xclk;
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u32 xclk_freq;
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+ struct gpio_desc *led_gpio;
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struct gpio_desc *reset_gpio;
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struct regulator_bulk_data supplies[IMX500_NUM_SUPPLIES];
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@@ -1990,7 +1991,10 @@ static int imx500_state_transition(struc
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}
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/* Do SPI transfer */
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+ gpiod_set_value_cansleep(imx500->led_gpio, 1);
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ret = imx500_spi_write(imx500, data, size);
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+ gpiod_set_value_cansleep(imx500->led_gpio, 0);
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+
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imx500->fw_progress += size;
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if (ret < 0)
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@@ -2670,6 +2674,8 @@ static int imx500_probe(struct i2c_clien
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return ret;
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}
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+ imx500->led_gpio = devm_gpiod_get_optional(dev, "led", GPIOD_OUT_LOW);
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+
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imx500->reset_gpio =
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devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
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