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([2001:861:44c0:66c0:ced2:397a:bee8:75f5]) by smtp.gmail.com with ESMTPSA id o13sm3308832wrq.37.2022.01.20.08.26.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Jan 2022 08:26:20 -0800 (PST) Subject: Re: [PATCH v2 3/6] drm/meson: venc: add ENCL encoder setup for MIPI-DSI output To: dri-devel@lists.freedesktop.org, martin.blumenstingl@googlemail.com Cc: linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20220120083357.1541262-1-narmstrong@baylibre.com> <20220120083357.1541262-4-narmstrong@baylibre.com> From: Neil Armstrong Organization: Baylibre Message-ID: <17810339-0e9c-0042-b6f7-927f5fe00421@baylibre.com> Date: Thu, 20 Jan 2022 17:26:20 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20220120083357.1541262-4-narmstrong@baylibre.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220120_082623_425096_A152A09F X-CRM114-Status: GOOD ( 24.02 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 20/01/2022 09:33, Neil Armstrong wrote: > This adds supports for the ENCL encoder connected to a MIPI-DSI transceiver on the > Amlogic AXG, G12A, G12B & SM1 SoCs. > > Signed-off-by: Neil Armstrong > --- > drivers/gpu/drm/meson/meson_registers.h | 15 ++ > drivers/gpu/drm/meson/meson_venc.c | 211 +++++++++++++++++++++++- > drivers/gpu/drm/meson/meson_venc.h | 6 + > drivers/gpu/drm/meson/meson_vpp.h | 2 + > 4 files changed, 232 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/meson/meson_registers.h b/drivers/gpu/drm/meson/meson_registers.h > index 0f3cafab8860..a422a8df1641 100644 > --- a/drivers/gpu/drm/meson/meson_registers.h > +++ b/drivers/gpu/drm/meson/meson_registers.h > @@ -1300,13 +1300,28 @@ > #define RDMA_STATUS2 0x1116 > #define RDMA_STATUS3 0x1117 > #define L_GAMMA_CNTL_PORT 0x1400 > +#define L_GAMMA_CNTL_PORT_VCOM_POL BIT(7) /* RW */ > +#define L_GAMMA_CNTL_PORT_RVS_OUT BIT(6) /* RW */ > +#define L_GAMMA_CNTL_PORT_ADR_RDY BIT(5) /* Read Only */ > +#define L_GAMMA_CNTL_PORT_WR_RDY BIT(4) /* Read Only */ > +#define L_GAMMA_CNTL_PORT_RD_RDY BIT(3) /* Read Only */ > +#define L_GAMMA_CNTL_PORT_TR BIT(2) /* RW */ > +#define L_GAMMA_CNTL_PORT_SET BIT(1) /* RW */ > +#define L_GAMMA_CNTL_PORT_EN BIT(0) /* RW */ > #define L_GAMMA_DATA_PORT 0x1401 > #define L_GAMMA_ADDR_PORT 0x1402 > +#define L_GAMMA_ADDR_PORT_RD BIT(12) > +#define L_GAMMA_ADDR_PORT_AUTO_INC BIT(11) > +#define L_GAMMA_ADDR_PORT_SEL_R BIT(10) > +#define L_GAMMA_ADDR_PORT_SEL_G BIT(9) > +#define L_GAMMA_ADDR_PORT_SEL_B BIT(8) > +#define L_GAMMA_ADDR_PORT_ADDR GENMASK(7, 0) > #define L_GAMMA_VCOM_HSWITCH_ADDR 0x1403 > #define L_RGB_BASE_ADDR 0x1405 > #define L_RGB_COEFF_ADDR 0x1406 > #define L_POL_CNTL_ADDR 0x1407 > #define L_DITH_CNTL_ADDR 0x1408 > +#define L_DITH_CNTL_DITH10_EN BIT(10) > #define L_GAMMA_PROBE_CTRL 0x1409 > #define L_GAMMA_PROBE_COLOR_L 0x140a > #define L_GAMMA_PROBE_COLOR_H 0x140b OK Somehow the following disappeared from the patchset... #define VENC_INTCTRL 0x1b6e #define VENC_INTCTRL_ENCI_LNRST_INT_EN BIT(1) -#define VENC_INTCTRL_ENCP_LNRST_INT_EN BIT(9) #define VENC_INTFLAG 0x1b6f #define ENCL_VIDEO_MODE 0x1ca7 -#define ENCL_PX_LN_CNT_SHADOW_EN BIT(15) #define ENCL_VIDEO_MODE_ADV 0x1ca8 -#define ENCL_VIDEO_MODE_ADV_VFIFO_EN BIT(3) -#define ENCL_VIDEO_MODE_ADV_GAIN_HDTV BIT(4) -#define ENCL_SEL_GAMMA_RGB_IN BIT(10) #define ENCL_DBG_PX_RST 0x1ca9 #define ENCL_VIDEO_FILT_CTRL 0x1cc2 -#define ENCL_VIDEO_FILT_CTRL_BYPASS_FILTER BIT(12) #define ENCL_VIDEO_OFLD_VPEQ_OFST 0x1cc3 #define ENCL_VIDEO_RGBIN_CTRL 0x1cc7 -#define ENCL_VIDEO_RGBIN_RGB BIT(0) -#define ENCL_VIDEO_RGBIN_ZBLK BIT(1) #define ENCL_MAX_LINE_SWITCH_POINT 0x1cc8 #define L_TCON_MISC_SEL_ADDR 0x1441 -#define L_TCON_MISC_SEL_STV1 BIT(4) -#define L_TCON_MISC_SEL_STV2 BIT(5) #define L_DUAL_PORT_CNTL_ADDR 0x1442 I'll resend with those > diff --git a/drivers/gpu/drm/meson/meson_venc.c b/drivers/gpu/drm/meson/meson_venc.c > index 3c55ed003359..eb2ac0549d46 100644 > --- a/drivers/gpu/drm/meson/meson_venc.c > +++ b/drivers/gpu/drm/meson/meson_venc.c > @@ -6,6 +6,7 @@ > */ > > #include > +#include > > #include > > @@ -1557,6 +1558,205 @@ void meson_venc_hdmi_mode_set(struct meson_drm *priv, int vic, > } > EXPORT_SYMBOL_GPL(meson_venc_hdmi_mode_set); > > +static unsigned short meson_encl_gamma_table[256] = { > + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, > + 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, > + 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, > + 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, > + 256, 260, 264, 268, 272, 276, 280, 284, 288, 292, 296, 300, 304, 308, 312, 316, > + 320, 324, 328, 332, 336, 340, 344, 348, 352, 356, 360, 364, 368, 372, 376, 380, > + 384, 388, 392, 396, 400, 404, 408, 412, 416, 420, 424, 428, 432, 436, 440, 444, > + 448, 452, 456, 460, 464, 468, 472, 476, 480, 484, 488, 492, 496, 500, 504, 508, > + 512, 516, 520, 524, 528, 532, 536, 540, 544, 548, 552, 556, 560, 564, 568, 572, > + 576, 580, 584, 588, 592, 596, 600, 604, 608, 612, 616, 620, 624, 628, 632, 636, > + 640, 644, 648, 652, 656, 660, 664, 668, 672, 676, 680, 684, 688, 692, 696, 700, > + 704, 708, 712, 716, 720, 724, 728, 732, 736, 740, 744, 748, 752, 756, 760, 764, > + 768, 772, 776, 780, 784, 788, 792, 796, 800, 804, 808, 812, 816, 820, 824, 828, > + 832, 836, 840, 844, 848, 852, 856, 860, 864, 868, 872, 876, 880, 884, 888, 892, > + 896, 900, 904, 908, 912, 916, 920, 924, 928, 932, 936, 940, 944, 948, 952, 956, > + 960, 964, 968, 972, 976, 980, 984, 988, 992, 996, 1000, 1004, 1008, 1012, 1016, 1020, > +}; > + > +static void meson_encl_set_gamma_table(struct meson_drm *priv, u16 *data, > + u32 rgb_mask) > +{ > + int i, ret; > + u32 reg; > + > + writel_bits_relaxed(L_GAMMA_CNTL_PORT_EN, 0, > + priv->io_base + _REG(L_GAMMA_CNTL_PORT)); > + > + ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT), > + reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000); > + if (ret) > + pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__); > + > + writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask | > + FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0), > + priv->io_base + _REG(L_GAMMA_ADDR_PORT)); > + > + for (i = 0; i < 256; i++) { > + ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT), > + reg, reg & L_GAMMA_CNTL_PORT_WR_RDY, > + 10, 10000); > + if (ret) > + pr_warn_once("%s: GAMMA WR_RDY timeout\n", __func__); > + > + writel_relaxed(data[i], priv->io_base + _REG(L_GAMMA_DATA_PORT)); > + } > + > + ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT), > + reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000); > + if (ret) > + pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__); > + > + writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask | > + FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0x23), > + priv->io_base + _REG(L_GAMMA_ADDR_PORT)); > +} > + > +void meson_encl_load_gamma(struct meson_drm *priv) > +{ > + meson_encl_set_gamma_table(priv, meson_encl_gamma_table, L_GAMMA_ADDR_PORT_SEL_R); > + meson_encl_set_gamma_table(priv, meson_encl_gamma_table, L_GAMMA_ADDR_PORT_SEL_G); > + meson_encl_set_gamma_table(priv, meson_encl_gamma_table, L_GAMMA_ADDR_PORT_SEL_B); > + > + writel_bits_relaxed(L_GAMMA_CNTL_PORT_EN, L_GAMMA_CNTL_PORT_EN, > + priv->io_base + _REG(L_GAMMA_CNTL_PORT)); > +} > + > +void meson_venc_mipi_dsi_mode_set(struct meson_drm *priv, > + const struct drm_display_mode *mode) > +{ > + unsigned int max_pxcnt; > + unsigned int max_lncnt; > + unsigned int havon_begin; > + unsigned int havon_end; > + unsigned int vavon_bline; > + unsigned int vavon_eline; > + unsigned int hso_begin; > + unsigned int hso_end; > + unsigned int vso_begin; > + unsigned int vso_end; > + unsigned int vso_bline; > + unsigned int vso_eline; > + > + max_pxcnt = mode->htotal - 1; > + max_lncnt = mode->vtotal - 1; > + havon_begin = mode->htotal - mode->hsync_start; > + havon_end = havon_begin + mode->hdisplay - 1; > + vavon_bline = mode->vtotal - mode->vsync_start; > + vavon_eline = vavon_bline + mode->vdisplay - 1; > + hso_begin = 0; > + hso_end = mode->hsync_end - mode->hsync_start; > + vso_begin = 0; > + vso_end = 0; > + vso_bline = 0; > + vso_eline = mode->vsync_end - mode->vsync_start; > + > + meson_vpp_setup_mux(priv, MESON_VIU_VPP_MUX_ENCL); > + > + writel_relaxed(0, priv->io_base + _REG(ENCL_VIDEO_EN)); > + > + writel_relaxed(ENCL_PX_LN_CNT_SHADOW_EN, priv->io_base + _REG(ENCL_VIDEO_MODE)); > + writel_relaxed(ENCL_VIDEO_MODE_ADV_VFIFO_EN | > + ENCL_VIDEO_MODE_ADV_GAIN_HDTV | > + ENCL_SEL_GAMMA_RGB_IN, priv->io_base + _REG(ENCL_VIDEO_MODE_ADV)); > + > + writel_relaxed(ENCL_VIDEO_FILT_CTRL_BYPASS_FILTER, > + priv->io_base + _REG(ENCL_VIDEO_FILT_CTRL)); > + writel_relaxed(max_pxcnt, priv->io_base + _REG(ENCL_VIDEO_MAX_PXCNT)); > + writel_relaxed(max_lncnt, priv->io_base + _REG(ENCL_VIDEO_MAX_LNCNT)); > + writel_relaxed(havon_begin, priv->io_base + _REG(ENCL_VIDEO_HAVON_BEGIN)); > + writel_relaxed(havon_end, priv->io_base + _REG(ENCL_VIDEO_HAVON_END)); > + writel_relaxed(vavon_bline, priv->io_base + _REG(ENCL_VIDEO_VAVON_BLINE)); > + writel_relaxed(vavon_eline, priv->io_base + _REG(ENCL_VIDEO_VAVON_ELINE)); > + > + writel_relaxed(hso_begin, priv->io_base + _REG(ENCL_VIDEO_HSO_BEGIN)); > + writel_relaxed(hso_end, priv->io_base + _REG(ENCL_VIDEO_HSO_END)); > + writel_relaxed(vso_begin, priv->io_base + _REG(ENCL_VIDEO_VSO_BEGIN)); > + writel_relaxed(vso_end, priv->io_base + _REG(ENCL_VIDEO_VSO_END)); > + writel_relaxed(vso_bline, priv->io_base + _REG(ENCL_VIDEO_VSO_BLINE)); > + writel_relaxed(vso_eline, priv->io_base + _REG(ENCL_VIDEO_VSO_ELINE)); > + writel_relaxed(ENCL_VIDEO_RGBIN_RGB | ENCL_VIDEO_RGBIN_ZBLK, > + priv->io_base + _REG(ENCL_VIDEO_RGBIN_CTRL)); > + > + /* default black pattern */ > + writel_relaxed(0, priv->io_base + _REG(ENCL_TST_MDSEL)); > + writel_relaxed(0, priv->io_base + _REG(ENCL_TST_Y)); > + writel_relaxed(0, priv->io_base + _REG(ENCL_TST_CB)); > + writel_relaxed(0, priv->io_base + _REG(ENCL_TST_CR)); > + writel_relaxed(1, priv->io_base + _REG(ENCL_TST_EN)); > + writel_bits_relaxed(ENCL_VIDEO_MODE_ADV_VFIFO_EN, 0, > + priv->io_base + _REG(ENCL_VIDEO_MODE_ADV)); > + > + writel_relaxed(1, priv->io_base + _REG(ENCL_VIDEO_EN)); > + > + writel_relaxed(0, priv->io_base + _REG(L_RGB_BASE_ADDR)); > + writel_relaxed(0x400, priv->io_base + _REG(L_RGB_COEFF_ADDR)); /* Magic value */ > + > + writel_relaxed(L_DITH_CNTL_DITH10_EN, priv->io_base + _REG(L_DITH_CNTL_ADDR)); > + > + /* DE signal for TTL */ > + writel_relaxed(havon_begin, priv->io_base + _REG(L_OEH_HS_ADDR)); > + writel_relaxed(havon_end + 1, priv->io_base + _REG(L_OEH_HE_ADDR)); > + writel_relaxed(vavon_bline, priv->io_base + _REG(L_OEH_VS_ADDR)); > + writel_relaxed(vavon_eline, priv->io_base + _REG(L_OEH_VE_ADDR)); > + > + /* DE signal for TTL */ > + writel_relaxed(havon_begin, priv->io_base + _REG(L_OEV1_HS_ADDR)); > + writel_relaxed(havon_end + 1, priv->io_base + _REG(L_OEV1_HE_ADDR)); > + writel_relaxed(vavon_bline, priv->io_base + _REG(L_OEV1_VS_ADDR)); > + writel_relaxed(vavon_eline, priv->io_base + _REG(L_OEV1_VE_ADDR)); > + > + /* Hsync signal for TTL */ > + if (mode->flags & DRM_MODE_FLAG_PHSYNC) { > + writel_relaxed(hso_end, priv->io_base + _REG(L_STH1_HS_ADDR)); > + writel_relaxed(hso_begin, priv->io_base + _REG(L_STH1_HE_ADDR)); > + } else { > + writel_relaxed(hso_begin, priv->io_base + _REG(L_STH1_HS_ADDR)); > + writel_relaxed(hso_end, priv->io_base + _REG(L_STH1_HE_ADDR)); > + } > + writel_relaxed(0, priv->io_base + _REG(L_STH1_VS_ADDR)); > + writel_relaxed(max_lncnt, priv->io_base + _REG(L_STH1_VE_ADDR)); > + > + /* Vsync signal for TTL */ > + writel_relaxed(vso_begin, priv->io_base + _REG(L_STV1_HS_ADDR)); > + writel_relaxed(vso_end, priv->io_base + _REG(L_STV1_HE_ADDR)); > + if (mode->flags & DRM_MODE_FLAG_PVSYNC) { > + writel_relaxed(vso_eline, priv->io_base + _REG(L_STV1_VS_ADDR)); > + writel_relaxed(vso_bline, priv->io_base + _REG(L_STV1_VE_ADDR)); > + } else { > + writel_relaxed(vso_bline, priv->io_base + _REG(L_STV1_VS_ADDR)); > + writel_relaxed(vso_eline, priv->io_base + _REG(L_STV1_VE_ADDR)); > + } > + > + /* DE signal */ > + writel_relaxed(havon_begin, priv->io_base + _REG(L_DE_HS_ADDR)); > + writel_relaxed(havon_end + 1, priv->io_base + _REG(L_DE_HE_ADDR)); > + writel_relaxed(vavon_bline, priv->io_base + _REG(L_DE_VS_ADDR)); > + writel_relaxed(vavon_eline, priv->io_base + _REG(L_DE_VE_ADDR)); > + > + /* Hsync signal */ > + writel_relaxed(hso_begin, priv->io_base + _REG(L_HSYNC_HS_ADDR)); > + writel_relaxed(hso_end, priv->io_base + _REG(L_HSYNC_HE_ADDR)); > + writel_relaxed(0, priv->io_base + _REG(L_HSYNC_VS_ADDR)); > + writel_relaxed(max_lncnt, priv->io_base + _REG(L_HSYNC_VE_ADDR)); > + > + /* Vsync signal */ > + writel_relaxed(vso_begin, priv->io_base + _REG(L_VSYNC_HS_ADDR)); > + writel_relaxed(vso_end, priv->io_base + _REG(L_VSYNC_HE_ADDR)); > + writel_relaxed(vso_bline, priv->io_base + _REG(L_VSYNC_VS_ADDR)); > + writel_relaxed(vso_eline, priv->io_base + _REG(L_VSYNC_VE_ADDR)); > + > + writel_relaxed(0, priv->io_base + _REG(L_INV_CNT_ADDR)); > + writel_relaxed(L_TCON_MISC_SEL_STV1 | L_TCON_MISC_SEL_STV2, > + priv->io_base + _REG(L_TCON_MISC_SEL_ADDR)); > + > + priv->venc.current_mode = MESON_VENC_MODE_MIPI_DSI; > +} > +EXPORT_SYMBOL_GPL(meson_venc_mipi_dsi_mode_set); > + > void meson_venci_cvbs_mode_set(struct meson_drm *priv, > struct meson_cvbs_enci_mode *mode) > { > @@ -1747,8 +1947,15 @@ unsigned int meson_venci_get_field(struct meson_drm *priv) > > void meson_venc_enable_vsync(struct meson_drm *priv) > { > - writel_relaxed(VENC_INTCTRL_ENCI_LNRST_INT_EN, > - priv->io_base + _REG(VENC_INTCTRL)); > + switch (priv->venc.current_mode) { > + case MESON_VENC_MODE_MIPI_DSI: > + writel_relaxed(VENC_INTCTRL_ENCP_LNRST_INT_EN, > + priv->io_base + _REG(VENC_INTCTRL)); > + break; > + default: > + writel_relaxed(VENC_INTCTRL_ENCI_LNRST_INT_EN, > + priv->io_base + _REG(VENC_INTCTRL)); > + } > regmap_update_bits(priv->hhi, HHI_GCLK_MPEG2, BIT(25), BIT(25)); > } > > diff --git a/drivers/gpu/drm/meson/meson_venc.h b/drivers/gpu/drm/meson/meson_venc.h > index 9138255ffc9e..0f59adb1c6db 100644 > --- a/drivers/gpu/drm/meson/meson_venc.h > +++ b/drivers/gpu/drm/meson/meson_venc.h > @@ -21,6 +21,7 @@ enum { > MESON_VENC_MODE_CVBS_PAL, > MESON_VENC_MODE_CVBS_NTSC, > MESON_VENC_MODE_HDMI, > + MESON_VENC_MODE_MIPI_DSI, > }; > > struct meson_cvbs_enci_mode { > @@ -47,6 +48,9 @@ struct meson_cvbs_enci_mode { > unsigned int analog_sync_adj; > }; > > +/* LCD Encoder gamma setup */ > +void meson_encl_load_gamma(struct meson_drm *priv); > + > /* HDMI Clock parameters */ > enum drm_mode_status > meson_venc_hdmi_supported_mode(const struct drm_display_mode *mode); > @@ -63,6 +67,8 @@ void meson_venc_hdmi_mode_set(struct meson_drm *priv, int vic, > unsigned int ycrcb_map, > bool yuv420_mode, > const struct drm_display_mode *mode); > +void meson_venc_mipi_dsi_mode_set(struct meson_drm *priv, > + const struct drm_display_mode *mode); > unsigned int meson_venci_get_field(struct meson_drm *priv); > > void meson_venc_enable_vsync(struct meson_drm *priv); > diff --git a/drivers/gpu/drm/meson/meson_vpp.h b/drivers/gpu/drm/meson/meson_vpp.h > index afc9553ed8d3..b790042a1650 100644 > --- a/drivers/gpu/drm/meson/meson_vpp.h > +++ b/drivers/gpu/drm/meson/meson_vpp.h > @@ -12,6 +12,8 @@ > struct drm_rect; > struct meson_drm; > > +/* Mux VIU/VPP to ENCL */ > +#define MESON_VIU_VPP_MUX_ENCL 0x0 > /* Mux VIU/VPP to ENCI */ > #define MESON_VIU_VPP_MUX_ENCI 0x5 > /* Mux VIU/VPP to ENCP */ > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic