Simple formula can be used to calculate CTS and N coefficients. Additionaly ACR registers have different offsets for different versions of IP.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/exynos/exynos_hdmi.c | 71 +++++++----------------------------- drivers/gpu/drm/exynos/regs-hdmi.h | 29 ++++++++++----- 2 files changed, 32 insertions(+), 68 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index c5a0617..a4ec8b9 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -71,12 +71,18 @@ enum hdmi_mapped_regs { HDMI_PHY_STATUS = HDMI_MAPPED_BASE, HDMI_PHY_RSTOUT, HDMI_ACR_CON, + HDMI_ACR_MCTS0, + HDMI_ACR_CTS0, + HDMI_ACR_N0 };
static const u32 hdmi_reg_map[][HDMI_TYPE_COUNT] = { { HDMI_V13_PHY_STATUS, HDMI_PHY_STATUS_0 }, { HDMI_V13_PHY_RSTOUT, HDMI_V14_PHY_RSTOUT }, { HDMI_V13_ACR_CON, HDMI_V14_ACR_CON }, + { HDMI_V13_ACR_MCTS0, HDMI_V14_ACR_MCTS0 }, + { HDMI_V13_ACR_CTS0, HDMI_V14_ACR_CTS0 }, + { HDMI_V13_ACR_N0, HDMI_V14_ACR_N0 }, };
static const char * const supply[] = { @@ -1106,65 +1112,16 @@ static bool hdmi_mode_fixup(struct drm_encoder *encoder, return true; }
-static void hdmi_set_acr(u32 freq, u8 *acr) +static void hdmi_reg_acr(struct hdmi_context *hdata, u32 freq) { u32 n, cts;
- switch (freq) { - case 32000: - n = 4096; - cts = 27000; - break; - case 44100: - n = 6272; - cts = 30000; - break; - case 88200: - n = 12544; - cts = 30000; - break; - case 176400: - n = 25088; - cts = 30000; - break; - case 48000: - n = 6144; - cts = 27000; - break; - case 96000: - n = 12288; - cts = 27000; - break; - case 192000: - n = 24576; - cts = 27000; - break; - default: - n = 0; - cts = 0; - break; - } - - acr[1] = cts >> 16; - acr[2] = cts >> 8 & 0xff; - acr[3] = cts & 0xff; + cts = (freq % 9) ? 27000 : 30000; + n = 128 * freq / (27000000 / cts);
- acr[4] = n >> 16; - acr[5] = n >> 8 & 0xff; - acr[6] = n & 0xff; -} - -static void hdmi_reg_acr(struct hdmi_context *hdata, u8 *acr) -{ - hdmi_reg_writeb(hdata, HDMI_ACR_N0, acr[6]); - hdmi_reg_writeb(hdata, HDMI_ACR_N1, acr[5]); - hdmi_reg_writeb(hdata, HDMI_ACR_N2, acr[4]); - hdmi_reg_writeb(hdata, HDMI_ACR_MCTS0, acr[3]); - hdmi_reg_writeb(hdata, HDMI_ACR_MCTS1, acr[2]); - hdmi_reg_writeb(hdata, HDMI_ACR_MCTS2, acr[1]); - hdmi_reg_writeb(hdata, HDMI_ACR_CTS0, acr[3]); - hdmi_reg_writeb(hdata, HDMI_ACR_CTS1, acr[2]); - hdmi_reg_writeb(hdata, HDMI_ACR_CTS2, acr[1]); + hdmi_reg_writev(hdata, HDMI_ACR_N0, 3, n); + hdmi_reg_writev(hdata, HDMI_ACR_MCTS0, 3, cts); + hdmi_reg_writev(hdata, HDMI_ACR_CTS0, 3, cts); hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4); }
@@ -1173,7 +1130,6 @@ static void hdmi_audio_init(struct hdmi_context *hdata) u32 sample_rate, bits_per_sample; u32 data_num, bit_ch, sample_frq; u32 val; - u8 acr[7];
sample_rate = 44100; bits_per_sample = 16; @@ -1193,8 +1149,7 @@ static void hdmi_audio_init(struct hdmi_context *hdata) break; }
- hdmi_set_acr(sample_rate, acr); - hdmi_reg_acr(hdata, acr); + hdmi_reg_acr(hdata, sample_rate);
hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CON, HDMI_I2S_IN_DISABLE | HDMI_I2S_AUD_I2S | HDMI_I2S_CUV_I2S_ENABLE diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h index 8b2d337..8c891e5 100644 --- a/drivers/gpu/drm/exynos/regs-hdmi.h +++ b/drivers/gpu/drm/exynos/regs-hdmi.h @@ -72,7 +72,6 @@ #define HDMI_V13_V_SYNC_GEN_3_0 HDMI_CORE_BASE(0x0150) #define HDMI_V13_V_SYNC_GEN_3_1 HDMI_CORE_BASE(0x0154) #define HDMI_V13_V_SYNC_GEN_3_2 HDMI_CORE_BASE(0x0158) -#define HDMI_V13_ACR_CON HDMI_CORE_BASE(0x0180) #define HDMI_V13_AVI_CON HDMI_CORE_BASE(0x0300) #define HDMI_V13_AVI_BYTE(n) HDMI_CORE_BASE(0x0320 + 4 * (n)) #define HDMI_V13_DC_CONTROL HDMI_CORE_BASE(0x05C0) @@ -277,16 +276,26 @@ #define HDMI_ASP_CHCFG2 HDMI_CORE_BASE(0x0318) #define HDMI_ASP_CHCFG3 HDMI_CORE_BASE(0x031C)
+#define HDMI_V13_ACR_CON HDMI_CORE_BASE(0x0180) +#define HDMI_V13_ACR_MCTS0 HDMI_CORE_BASE(0x0184) +#define HDMI_V13_ACR_MCTS1 HDMI_CORE_BASE(0x0188) +#define HDMI_V13_ACR_MCTS2 HDMI_CORE_BASE(0x018C) +#define HDMI_V13_ACR_CTS0 HDMI_CORE_BASE(0x0190) +#define HDMI_V13_ACR_CTS1 HDMI_CORE_BASE(0x0194) +#define HDMI_V13_ACR_CTS2 HDMI_CORE_BASE(0x0198) +#define HDMI_V13_ACR_N0 HDMI_CORE_BASE(0x01A0) +#define HDMI_V13_ACR_N1 HDMI_CORE_BASE(0x01A4) +#define HDMI_V13_ACR_N2 HDMI_CORE_BASE(0x01A8) #define HDMI_V14_ACR_CON HDMI_CORE_BASE(0x0400) -#define HDMI_ACR_MCTS0 HDMI_CORE_BASE(0x0410) -#define HDMI_ACR_MCTS1 HDMI_CORE_BASE(0x0414) -#define HDMI_ACR_MCTS2 HDMI_CORE_BASE(0x0418) -#define HDMI_ACR_CTS0 HDMI_CORE_BASE(0x0420) -#define HDMI_ACR_CTS1 HDMI_CORE_BASE(0x0424) -#define HDMI_ACR_CTS2 HDMI_CORE_BASE(0x0428) -#define HDMI_ACR_N0 HDMI_CORE_BASE(0x0430) -#define HDMI_ACR_N1 HDMI_CORE_BASE(0x0434) -#define HDMI_ACR_N2 HDMI_CORE_BASE(0x0438) +#define HDMI_V14_ACR_MCTS0 HDMI_CORE_BASE(0x0410) +#define HDMI_V14_ACR_MCTS1 HDMI_CORE_BASE(0x0414) +#define HDMI_V14_ACR_MCTS2 HDMI_CORE_BASE(0x0418) +#define HDMI_V14_ACR_CTS0 HDMI_CORE_BASE(0x0420) +#define HDMI_V14_ACR_CTS1 HDMI_CORE_BASE(0x0424) +#define HDMI_V14_ACR_CTS2 HDMI_CORE_BASE(0x0428) +#define HDMI_V14_ACR_N0 HDMI_CORE_BASE(0x0430) +#define HDMI_V14_ACR_N1 HDMI_CORE_BASE(0x0434) +#define HDMI_V14_ACR_N2 HDMI_CORE_BASE(0x0438)
/* Packet related registers */ #define HDMI_ACP_CON HDMI_CORE_BASE(0x0500)