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 <eric@nelint.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
[agust: fixed #endif in cgtqmx6eval.h]
Signed-off-by: Anatolij Gustschin <agust@denx.de>

drivers/video/ipu_common.c

@@ -19,6 +19,7 @@
 #include <linux/errno.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/crm_regs.h>
+#include <asm/arch/sys_proto.h>
 #include <div64.h>
 #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));

include/configs/advantech_dms-ba16.h

@@ -253,7 +253,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK                260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 #endif

include/configs/apalis_imx6.h

@@ -117,7 +117,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK		260000000
 #define CONFIG_CONSOLE_MUX
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP

include/configs/aristainetos-common.h

@@ -214,7 +214,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK 198000000
 #define CONFIG_IMX_VIDEO_SKIP
 
 #define CONFIG_PWM_IMX

include/configs/cgtqmx6eval.h

@@ -78,11 +78,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#ifdef CONFIG_MX6DL
-#define CONFIG_IPUV3_CLK 198000000
-#else
-#define CONFIG_IPUV3_CLK 264000000
-#endif
 #define CONFIG_IMX_HDMI
 
 /* SATA */

include/configs/cm_fx6.h

@@ -236,7 +236,6 @@
 
 /* Display */
 #define CONFIG_VIDEO_IPUV3
-#define CONFIG_IPUV3_CLK          260000000
 #define CONFIG_IMX_HDMI
 
 #define CONFIG_SPLASH_SCREEN

include/configs/colibri_imx6.h

@@ -103,7 +103,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK		260000000
 #define CONFIG_CONSOLE_MUX
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP

include/configs/embestmx6boards.h

@@ -108,7 +108,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK 260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 

include/configs/ge_bx50v3.h

@@ -277,7 +277,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_IPUV3_CLK 260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 #endif

include/configs/gw_ventana.h

@@ -156,7 +156,6 @@
 /* Framebuffer and LCD */
 #define CONFIG_VIDEO_IPUV3
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK          260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 #define CONFIG_VIDEO_BMP_LOGO

include/configs/imx6-engicam.h

@@ -199,7 +199,6 @@
 
 /* Framebuffer */
 #ifdef CONFIG_VIDEO_IPUV3
-# define CONFIG_IPUV3_CLK		260000000
 # define CONFIG_IMX_VIDEO_SKIP
 
 # define CONFIG_SPLASH_SCREEN

include/configs/m53evk.h

@@ -172,7 +172,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE	(2 << 20)
-#define CONFIG_IPUV3_CLK		200000000
 #endif
 
 /*

include/configs/mx51evk.h

@@ -84,7 +84,6 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK	133000000
 
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE

include/configs/mx53cx9020.h

@@ -179,6 +179,5 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK	200000000
 
 #endif /* __CONFIG_H */

include/configs/mx53loco.h

@@ -197,6 +197,5 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK	200000000
 
 #endif				/* __CONFIG_H */

include/configs/mx6cuboxi.h

@@ -41,7 +41,6 @@
 
 /* Framebuffer */
 #define CONFIG_VIDEO_IPUV3
-#define CONFIG_IPUV3_CLK		260000000
 #define CONFIG_VIDEO_BMP_RLE8
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_SPLASH_SCREEN_ALIGN

include/configs/mx6sabre_common.h

@@ -205,11 +205,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#ifdef CONFIG_MX6DL
-#define CONFIG_IPUV3_CLK 198000000
-#else
-#define CONFIG_IPUV3_CLK 264000000
-#endif
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 

include/configs/nitrogen6x.h

@@ -80,7 +80,6 @@
 #define CONFIG_VIDEO_BMP_GZIP
 #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (6 * 1024 * 1024)
 #define CONFIG_BMP_16BPP
-#define CONFIG_IPUV3_CLK 260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 

include/configs/novena.h

@@ -141,7 +141,6 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK		260000000
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 #endif

include/configs/tbs2910.h

@@ -64,7 +64,6 @@
 /* Framebuffer */
 #ifdef CONFIG_VIDEO
 #define CONFIG_VIDEO_IPUV3
-#define CONFIG_IPUV3_CLK		260000000
 #define CONFIG_VIDEO_BMP_RLE8
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP