From c7430d7d5efc45666476dab0da97466cb8ccff8e Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 6 Sep 2017 13:49:31 -0300 Subject: ipu_common: Let the MX6 IPU clock be calculated in run-time MX6Q/QP IPU operates at 264MHz and MX6DL IPU at 198MHz. When running a SPL target, which supports multiple MX6 variants we cannot properly setup the IPU clock frequency via CONFIG_IPUV3_CLK option as such decision is done in build-time currently. Remove the CONFIG_IPUV3_CLK option and let the IPU clock frequency be configured in run-time on mx6. Reported-by: Eric Nelson Signed-off-by: Fabio Estevam Reviewed-by: Eric Nelson Reviewed-by: Stefano Babic [agust: fixed #endif in cgtqmx6eval.h] Signed-off-by: Anatolij Gustschin --- drivers/video/ipu_common.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c index f259fb96332..96229da502b 100644 --- a/drivers/video/ipu_common.c +++ b/drivers/video/ipu_common.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "ipu.h" #include "ipu_regs.h" @@ -81,6 +82,11 @@ struct ipu_ch_param { #define IPU_SW_RST_TOUT_USEC (10000) +#define IPUV3_CLK_MX51 133000000 +#define IPUV3_CLK_MX53 200000000 +#define IPUV3_CLK_MX6Q 264000000 +#define IPUV3_CLK_MX6DL 198000000 + void clk_enable(struct clk *clk) { if (clk) { @@ -196,7 +202,6 @@ static void clk_ipu_disable(struct clk *clk) static struct clk ipu_clk = { .name = "ipu_clk", - .rate = CONFIG_IPUV3_CLK, #if defined(CONFIG_MX51) || defined(CONFIG_MX53) .enable_reg = (u32 *)(CCM_BASE_ADDR + offsetof(struct mxc_ccm_reg, CCGR5)), @@ -476,6 +481,13 @@ int ipu_probe(void) g_pixel_clk[1] = &pixel_clk[1]; g_ipu_clk = &ipu_clk; +#if defined(CONFIG_MX51) + g_ipu_clk->rate = IPUV3_CLK_MX51; +#elif defined(CONFIG_MX53) + g_ipu_clk->rate = IPUV3_CLK_MX53; +#else + g_ipu_clk->rate = is_mx6sdl() ? IPUV3_CLK_MX6DL : IPUV3_CLK_MX6Q; +#endif debug("ipu_clk = %u\n", clk_get_rate(g_ipu_clk)); g_ldb_clk = &ldb_clk; debug("ldb_clk = %u\n", clk_get_rate(g_ldb_clk)); -- cgit v1.3.1