[PATCH v2 1/6] media: mach-pxa: Register the camera sensor fixed-rate clock
From: Ezequiel Garcia <hidden>
Date: 2021-01-12 19:52:35
Subsystem:
arm port, pxa2xx/pxa3xx support, the rest · Maintainers:
Russell King, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds
The pxa-camera capture driver currently registers a v4l2-clk clock, named "mclk", to represent the mt9m111 sensor clock. Register a proper fixed-rate clock using the generic clock framework, which will allow to remove the v4l2-clk clock in the pxa-camera driver in a follow-up commit. Signed-off-by: Ezequiel Garcia <redacted> Acked-by: Arnd Bergmann <arnd@arndb.de> (for arch/arm/mach-*/) --- Quoting Arnd: """ If there are no objections to the change itself, please take it through the v4l2 git tree. """ arch/arm/mach-pxa/devices.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 524d6093e0c7..09b8495f3fd9 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c@@ -4,6 +4,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/clkdev.h> +#include <linux/clk-provider.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/spi/pxa2xx_spi.h>
@@ -634,6 +635,13 @@ static struct platform_device pxa27x_device_camera = { void __init pxa_set_camera_info(struct pxacamera_platform_data *info) { + struct clk *mclk; + + /* Register a fixed-rate clock for camera sensors. */ + mclk = clk_register_fixed_rate(NULL, "pxa_camera_clk", NULL, 0, + info->mclk_10khz * 10000); + if (!IS_ERR(mclk)) + clkdev_create(mclk, "mclk", NULL); pxa_register_device(&pxa27x_device_camera, info); }
--
2.29.2