ipu_common: Let the MX6 IPU clock be calculated in run-time

RFC New Fabio Estevam 1 participant 1 message Sep 6, 2017

Subsystems (3)

Arm i.MX and Layerscape Framebuffer layer Arm STM32

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Fabio Estevam

author reviewer

2017-09-06 13:48 UTC #0 lore raw

RFC 1/1 ipu_common: Let the MX6 IPU clock be calculated in run-time

From: Fabio Estevam <[email protected]>

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 detected in run-time on mx6.

Reported-by Eric Nelson <[email protected]>

Signed-off-by Fabio Estevam <[email protected]>

---
 drivers/video/ipu_common.c            | 17 ++++++++++++++++-
 include/configs/advantech_dms-ba16.h  |  1 -
 include/configs/apalis_imx6.h         |  1 -
 include/configs/aristainetos-common.h |  1 -
 include/configs/cgtqmx6eval.h         |  4 ----
 include/configs/cm_fx6.h              |  1 -
 include/configs/colibri_imx6.h        |  1 -
 include/configs/embestmx6boards.h     |  1 -
 include/configs/ge_bx50v3.h           |  1 -
 include/configs/gw_ventana.h          |  1 -
 include/configs/imx6-engicam.h        |  1 -
 include/configs/m53evk.h              |  1 -
 include/configs/mx51evk.h             |  1 -
 include/configs/mx53cx9020.h          |  1 -
 include/configs/mx53loco.h            |  1 -
 include/configs/mx6cuboxi.h           |  1 -
 include/configs/mx6sabre_common.h     |  5 -----
 include/configs/nitrogen6x.h          |  1 -
 include/configs/novena.h              |  1 -
 include/configs/tbs2910.h             |  1 -
 include/configs/wandboard.h           |  1 -
 scripts/config_whitelist.txt          |  1 -
 22 files changed, 16 insertions(+), 29 deletions(-)

drivers/video/ipu_common.c +16 -1

index f8d4488..9fce4dd 100644
@@ -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 +481,16 @@ 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
+	if (is_mx6dqp() || is_mx6dq())
+		g_ipu_clk->rate = IPUV3_CLK_MX6Q;
+	else if (is_mx6dl())
+		g_ipu_clk->rate = IPUV3_CLK_MX6DL;
+#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 +0 -1

index 6329bf6..6e380d0 100644
@@ -260,7 +260,6 @@
 #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 +0 -1

index 16af141..f10ce6d 100644
@@ -124,7 +124,6 @@
 #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 +0 -1

index 1c28fcf..3afc7a6 100644
@@ -217,7 +217,6 @@
 #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 +0 -4

index 4996a89..6a6c063 100644
@@ -87,10 +87,6 @@
 #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

include/configs/cm_fx6.h +0 -1

index 4f45be1..5d4b670 100644
@@ -240,7 +240,6 @@
 
 /* Display */
 #define CONFIG_VIDEO_IPUV3
-#define CONFIG_IPUV3_CLK          260000000
 #define CONFIG_IMX_HDMI
 
 #define CONFIG_SPLASH_SCREEN

include/configs/colibri_imx6.h +0 -1

index fca72f4..cb8a0e2 100644
@@ -110,7 +110,6 @@
 #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 +0 -1

index d1dec80..1400d66 100644
@@ -113,7 +113,6 @@
 #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 +0 -1

index d090cdd..9906241 100644
@@ -290,7 +290,6 @@
 #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 +0 -1

index aeacd46..b7a1e10 100644
@@ -160,7 +160,6 @@
 /* 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 +0 -1

index a1b7036..c34dc30 100644
@@ -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 +0 -1

index 4dc6e16..a0d74a0 100644
@@ -179,7 +179,6 @@
 #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 +0 -1

index 5daa50d..6677686 100644
@@ -87,7 +87,6 @@
 #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 +0 -1

index 4137592..04c3d09 100644
@@ -187,6 +187,5 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK	200000000
 
 #endif /* __CONFIG_H */

include/configs/mx53loco.h +0 -1

index 3828b21..317ffab 100644
@@ -204,6 +204,5 @@
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
-#define CONFIG_IPUV3_CLK	200000000
 
 #endif				/* __CONFIG_H */

include/configs/mx6cuboxi.h +0 -1

index 5930f59..c9eec52 100644
@@ -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 +0 -5

index b849eea..cb700e5 100644
@@ -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 +0 -1

index bc17b51..f710a9c 100644
@@ -85,7 +85,6 @@
 #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 +0 -1

index 7c5445d..d661aff 100644
@@ -145,7 +145,6 @@
 #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 +0 -1

index c3fc8a3..e70ebbf 100644
@@ -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

include/configs/wandboard.h +0 -1

index d9237d7..3ba4c29 100644
@@ -71,7 +71,6 @@
 #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

scripts/config_whitelist.txt +0 -1

index 0a751e4..83c3d83 100644
@@ -1127,7 +1127,6 @@ CONFIG_IPAM390_GPIO_BOOTMODE
 CONFIG_IPAM390_GPIO_LED_GREEN
 CONFIG_IPAM390_GPIO_LED_RED
 CONFIG_IPROC
-CONFIG_IPUV3_CLK
 CONFIG_IP_DEFRAG
 CONFIG_IRAM_BASE
 CONFIG_IRAM_END

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