Thread (35 messages) 35 messages, 7 authors, 2012-07-24

Re: [PATCH V2 1/7] ARM: SAMSUNG: add additional registers and SFR definitions for writeback

From: Leela Krishna Amudala <hidden>
Date: 2012-07-19 12:43:49
Also in: linux-arm-kernel, linux-samsung-soc

Hello Marek,

On Wed, Jul 18, 2012 at 12:21 PM, Marek Szyprowski
[off-list ref] wrote:
Hello,

On Wednesday, July 18, 2012 7:57 AM Leela Krishna Amudala wrote:
quoted
This patch updates the register address offsets and adds SFR definitions
for writeback for Samsung's V8 display controller.

Signed-off-by: Leela Krishna Amudala <redacted>
---
 arch/arm/plat-samsung/include/plat/regs-fb-v4.h |   10 ++++
 arch/arm/plat-samsung/include/plat/regs-fb.h    |   51 +++++++++++++++++++++++
 drivers/video/Kconfig                           |    6 +++
 3 files changed, 67 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h b/arch/arm/plat-
samsung/include/plat/regs-fb-v4.h
index 4c3647f..1639c17 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -30,9 +30,16 @@
 #define VIDCON1_FSTATUS_EVEN (1 << 15)

 /* Video timing controls */
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDTCON0                                (0x20010)
+#define VIDTCON1                                (0x20014)
+#define VIDTCON3                                (0x2001C)
+#else
 #define VIDTCON0                             (0x10)
 #define VIDTCON1                             (0x14)
 #define VIDTCON2                             (0x18)
+#define VIDTCON3                             (0x1C)
+#endif

 /* Window position controls */
@@ -43,9 +50,12 @@
 #define VIDOSD_BASE                          (0x40)

 #define VIDINTCON0                           (0x130)
+#define VIDINTCON1                              (0x134)

 /* WINCONx */

+#define WINCONx_CSC_CON_EQ709                   (1 << 28)
+#define WINCONx_CSC_CON_EQ601                   (0 << 28)
 #define WINCONx_CSCWIDTH_MASK                        (0x3 << 26)
 #define WINCONx_CSCWIDTH_SHIFT                       (26)
 #define WINCONx_CSCWIDTH_WIDE                        (0x0 << 26)
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-
samsung/include/plat/regs-fb.h
index 9a78012..6d2ee16 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -32,12 +32,28 @@

 #define VIDCON0                                      (0x00)
 #define VIDCON0_INTERLACE                    (1 << 29)
+
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDOUT_CON                           (0x20000)
+#define VIDOUT_CON_VIDOUT_UP_MASK            (0x1 << 16)
+#define VIDOUT_CON_VIDOUT_UP_SHIFT           (16)
+#define VIDOUT_CON_VIDOUT_UP_ALWAYS          (0x0 << 16)
+#define VIDOUT_CON_VIDOUT_UP_START_FRAME     (0x1 << 16)
+#define VIDOUT_CON_VIDOUT_F_MASK             (0x7 << 8)
+#define VIDOUT_CON_VIDOUT_F_SHIFT            (8)
+#define VIDOUT_CON_VIDOUT_F_RGB                      (0x0 << 8)
+#define VIDOUT_CON_VIDOUT_F_I80_LDI0         (0x2 << 8)
+#define VIDOUT_CON_VIDOUT_F_I80_LDI1         (0x3 << 8)
+#define VIDOUT_CON_VIDOUT_F_WB                       (0x4 << 8)
+#endif
+
 #define VIDCON0_VIDOUT_MASK                  (0x3 << 26)
 #define VIDCON0_VIDOUT_SHIFT                 (26)
 #define VIDCON0_VIDOUT_RGB                   (0x0 << 26)
 #define VIDCON0_VIDOUT_TV                    (0x1 << 26)
 #define VIDCON0_VIDOUT_I80_LDI0                      (0x2 << 26)
 #define VIDCON0_VIDOUT_I80_LDI1                      (0x3 << 26)
+#define VIDCON0_VIDOUT_WB                       (0x4 << 26)

 #define VIDCON0_L1_DATA_MASK                 (0x7 << 23)
 #define VIDCON0_L1_DATA_SHIFT                        (23)
@@ -81,7 +97,13 @@
 #define VIDCON0_ENVID                                (1 << 1)
 #define VIDCON0_ENVID_F                              (1 << 0)

+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDOUT_CON                              (0x20000)
+#define VIDCON1                                 (0x20004)
+#else
 #define VIDCON1                                      (0x04)
+#endif
+
 #define VIDCON1_LINECNT_MASK                 (0x7ff << 16)
 #define VIDCON1_LINECNT_SHIFT                        (16)
 #define VIDCON1_LINECNT_GET(_v)                      (((_v) >> 16) & 0x7ff)
@@ -111,6 +133,14 @@
 #define VIDCON2_TVFMTSEL1_RGB                        (0x0 << 12)
 #define VIDCON2_TVFMTSEL1_YUV422             (0x1 << 12)
 #define VIDCON2_TVFMTSEL1_YUV444             (0x2 << 12)
+#define VIDCON2_TVFMTSEL1_SHIFT                      (12)
+#define VIDCON2_TVFMTSEL_SW                  (1 << 14)
+#define VIDCON2_TVFORMATSEL_YUV444           (0x2 << 12)
+
+#define VIDCON2_TVFMTSEL1_MASK                       (0x3 << 12)
+#define VIDCON2_TVFMTSEL1_RGB                        (0x0 << 12)
+#define VIDCON2_TVFMTSEL1_YUV422             (0x1 << 12)
+#define VIDCON2_TVFMTSEL1_YUV444             (0x2 << 12)

 #define VIDCON2_ORGYCbCr                     (1 << 8)
 #define VIDCON2_YUVORDCrCb                   (1 << 7)
@@ -165,8 +195,15 @@
 #define VIDTCON1_HSPW_SHIFT                  (0)
 #define VIDTCON1_HSPW_LIMIT                  (0xff)
 #define VIDTCON1_HSPW(_x)                    ((_x) << 0)
+#define VIDCON1_VCLK_MASK                       (0x3 << 9)
+#define VIDCON1_VCLK_HOLD                       (0x0 << 9)
+#define VIDCON1_VCLK_RUN                        (0x1 << 9)

+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDTCON2                             (0x20018)
+#else
 #define VIDTCON2                             (0x18)
+#endif
 #define VIDTCON2_LINEVAL_E(_x)                       ((((_x) & 0x800) >> 11) << 23)
 #define VIDTCON2_LINEVAL_MASK                        (0x7ff << 11)
 #define VIDTCON2_LINEVAL_SHIFT                       (11)
@@ -186,6 +223,9 @@
 #define WINCONx_BYTSWP                               (1 << 17)
 #define WINCONx_HAWSWP                               (1 << 16)
 #define WINCONx_WSWP                         (1 << 15)
+#define WINCONx_ENLOCAL_MASK                 (0xf << 15)
+#define WINCONx_INRGB_RGB                    (0 << 13)
+#define WINCONx_INRGB_YCBCR                  (1 << 13)
 #define WINCONx_BURSTLEN_MASK                        (0x3 << 9)
 #define WINCONx_BURSTLEN_SHIFT                       (9)
 #define WINCONx_BURSTLEN_16WORD                      (0x0 << 9)
@@ -205,6 +245,7 @@
 #define WINCON0_BPPMODE_24BPP_888            (0xb << 2)

 #define WINCON1_BLD_PIX                              (1 << 6)
+#define WINCON1_BLD_PLANE                    (0 << 6)

 #define WINCON1_ALPHA_SEL                    (1 << 1)
 #define WINCON1_BPPMODE_MASK                 (0xf << 2)
@@ -395,9 +436,19 @@
 #define WPALCON_W0PAL_16BPP_A555             (0x5 << 0)
 #define WPALCON_W0PAL_16BPP_565                      (0x6 << 0)

+/* Clock gate mode control */
+#define REG_CLKGATE_MODE                     (0x1b0)
+#define REG_CLKGATE_MODE_AUTO_CLOCK_GATE     (0 << 0)
+#define REG_CLKGATE_MODE_NON_CLOCK_GATE              (1 << 0)
+
 /* Blending equation control */
 #define BLENDCON                             (0x260)
 #define BLENDCON_NEW_MASK                    (1 << 0)
 #define BLENDCON_NEW_8BIT_ALPHA_VALUE                (1 << 0)
 #define BLENDCON_NEW_4BIT_ALPHA_VALUE                (0 << 0)

+/* Window alpha control */
+#define VIDW0ALPHA0                          (0x200)
+#define VIDW0ALPHA1                          (0x204)
+#define DPCLKCON                             (0x27c)
+#define DPCLKCON_ENABLE                              (1 << 1)
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0217f74..f81bf55 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2053,6 +2053,12 @@ config FB_S3C

        Currently the support is only for the S3C6400 and S3C6410 SoCs.

+config FB_EXYNOS_FIMD_V8
+     bool "register extensions for FIMD version 8"
+     depends on ARCH_EXYNOS5
+     ---help---
+     This uses register extensions for FIMD version 8
+
 config FB_S3C_DEBUG_REGWRITE
        bool "Debug register writes"
        depends on FB_S3C
Do we really need these defines in arch/arm/plat-samsung/include/plat/regs-fb* ?
IMHO they should be moved from arch/arm to drivers/video to live together with the driver.
They are not a part of core platform code. I thought that there have been some patches
cleaning up regs-fb mess a long time ago, but it looks they didn't get their way to
mainline.
The defines I had given in these headers are specific to exynos5
platform and are using by both drm-fimd and
s3c-fb. I'm not understanding the need to move these defines from
arch/arm to drivers/video. Can you please tell me why we have to do
that.

Best Wishes,
Leela Krishna Amudala.
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center


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