From 6d1aa02f10497b138e01ebe6eafabd6071729334 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 10 Nov 2012 12:06:25 +0100 Subject: [PATCH] omap3isp: Set cam_mclk rate directly Now that the cam_mclk rate changes are back-propagated to dpll4_m5_ck we can set the cam_mclk rate directly instead of manually setting the rate of the parent clock. Signed-off-by: Laurent Pinchart Reviewed-by: Mike Turquette Acked-by: Sakari Ailus Tested-by: Sakari Ailus --- drivers/media/platform/omap3isp/isp.c | 18 ++---------------- drivers/media/platform/omap3isp/isp.h | 8 +++----- 2 files changed, 5 insertions(+), 21 deletions(-) diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index e4aaee9..e7f5da0 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -1338,28 +1338,15 @@ static int isp_enable_clocks(struct isp_device *isp) { int r; unsigned long rate; - int divisor; - - /* - * cam_mclk clock chain: - * dpll4 -> dpll4_m5 -> dpll4_m5x2 -> cam_mclk - * - * In OMAP3630 dpll4_m5x2 != 2 x dpll4_m5 but both are - * set to the same value. Hence the rate set for dpll4_m5 - * has to be twice of what is set on OMAP3430 to get - * the required value for cam_mclk - */ - divisor = isp->revision == ISP_REVISION_15_0 ? 1 : 2; r = clk_prepare_enable(isp->clock[ISP_CLK_CAM_ICK]); if (r) { dev_err(isp->dev, "failed to enable cam_ick clock\n"); goto out_clk_enable_ick; } - r = clk_set_rate(isp->clock[ISP_CLK_DPLL4_M5_CK], - CM_CAM_MCLK_HZ/divisor); + r = clk_set_rate(isp->clock[ISP_CLK_CAM_MCLK], CM_CAM_MCLK_HZ); if (r) { - dev_err(isp->dev, "clk_set_rate for dpll4_m5_ck failed\n"); + dev_err(isp->dev, "clk_set_rate for cam_mclk failed\n"); goto out_clk_enable_mclk; } r = clk_prepare_enable(isp->clock[ISP_CLK_CAM_MCLK]); @@ -1401,7 +1388,6 @@ static void isp_disable_clocks(struct isp_device *isp) static const char *isp_clocks[] = { "cam_ick", "cam_mclk", - "dpll4_m5_ck", "csi2_96m_fck", "l3_ick", }; diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h index 517d348..c77e1f2 100644 --- a/drivers/media/platform/omap3isp/isp.h +++ b/drivers/media/platform/omap3isp/isp.h @@ -147,7 +147,6 @@ struct isp_platform_callback { * @ref_count: Reference count for handling multiple ISP requests. * @cam_ick: Pointer to camera interface clock structure. * @cam_mclk: Pointer to camera functional clock structure. - * @dpll4_m5_ck: Pointer to DPLL4 M5 clock structure. * @csi2_fck: Pointer to camera CSI2 complexIO clock structure. * @l3_ick: Pointer to OMAP3 L3 bus interface clock. * @irq: Currently attached ISP ISR callbacks information structure. @@ -189,10 +188,9 @@ struct isp_device { u32 xclk_divisor[2]; /* Two clocks, a and b. */ #define ISP_CLK_CAM_ICK 0 #define ISP_CLK_CAM_MCLK 1 -#define ISP_CLK_DPLL4_M5_CK 2 -#define ISP_CLK_CSI2_FCK 3 -#define ISP_CLK_L3_ICK 4 - struct clk *clock[5]; +#define ISP_CLK_CSI2_FCK 2 +#define ISP_CLK_L3_ICK 3 + struct clk *clock[4]; /* ISP modules */ struct ispstat isp_af; -- 2.7.4