Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965957AbbBCPOl (ORCPT ); Tue, 3 Feb 2015 10:14:41 -0500 Received: from regular1.263xmail.com ([211.150.99.134]:58992 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965697AbbBCPOi (ORCPT ); Tue, 3 Feb 2015 10:14:38 -0500 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: ykk@rock-chips.com X-FST-TO: airlied@linux.ie X-SENDER-IP: 192.253.240.203 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <3de2a163a79ec0c65a12ac597cb3ac6d> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Yakir Yang To: David Airlie , Russell King , Philipp Zabel Cc: Fabio Estevam , Shawn Guo , Rob Clark , Mark Yao , Daniel Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Sean Cross , Jyri Sarha , Ben Zhang , alsa-devel@alsa-project.org, Heiko Stuebner , linux-arm-kernel@lists.infradead.org, Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org, djkurtz@chromium.org, mmind00@googlemail.com, dianders@chromium.org, marcheu@chromium.org, linux-rockchip@lists.infradead.org, Yakir Yang Subject: [PATCH v3 07/15] drm: bridge/dw_hdmi: set ncts_atomic_write & cts_manual Date: Tue, 3 Feb 2015 10:13:49 -0500 Message-Id: <1422976429-30212-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1422975418-13302-1-git-send-email-ykk@rock-chips.com> References: <1422975418-13302-1-git-send-email-ykk@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2778 Lines: 77 The ncts_atomic_write & cts_manual bits are present when design id equal to 0x20. After set the ncts_atomic_write, then the new N and CTS values are only used when aud_n1 register is updated. After set cts_manual bit, the new CTS value can set by AudCTS registers. - write N3 ncts_atomic_write = 1 - write CTS3 CTS_manual = 1 Signed-off-by: Yakir Yang --- Changes in v3: - Set ncts_atomic_write & cts_manual Changes in v2: None drivers/gpu/drm/bridge/dw_hdmi.c | 13 +++++++++++-- drivers/gpu/drm/bridge/dw_hdmi.h | 6 ++++++ 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index 81309df..b0b2605 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -199,8 +199,15 @@ static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg, static void hdmi_set_clock_regenerator(struct dw_hdmi *hdmi, unsigned int n, unsigned int cts) { + if (hdmi->id.design == 0x20) { + /* set ncts_atomic_write */ + hdmi_writeb(hdmi, HDMI_AUD_N3_NCTS_ATOMIC_WRITE_SET, + HDMI_AUD_N3); + } + /* Must be set/cleared first */ - hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); + hdmi_modb(hdmi, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3_CTS_MANUAL, + HDMI_AUD_CTS3); /* nshift factor = 0 */ hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3); @@ -210,7 +217,9 @@ static void hdmi_set_clock_regenerator(struct dw_hdmi *hdmi, hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2); hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1); - hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3); + /* set n values */ + hdmi_modb(hdmi, (n >> 16) & HDMI_AUD_N3_AUDN19_16_MASK, + HDMI_AUD_N3_AUDN19_16_MASK, HDMI_AUD_N3); hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2); hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1); } diff --git a/drivers/gpu/drm/bridge/dw_hdmi.h b/drivers/gpu/drm/bridge/dw_hdmi.h index e4ba634..29e4bee 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.h +++ b/drivers/gpu/drm/bridge/dw_hdmi.h @@ -907,6 +907,12 @@ enum { HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL = 0x08, HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_MASK = 0x04, +/* AUD_N3 field values */ + HDMI_AUD_N3_NCTS_ATOMIC_WRITE_MASK = 0x80, + HDMI_AUD_N3_NCTS_ATOMIC_WRITE_SET = 0x80, + HDMI_AUD_N3_NCTS_ATOMIC_WRITE_CLEAR = 0x00, + HDMI_AUD_N3_AUDN19_16_MASK = 0x0f, + /* AUD_CTS3 field values */ HDMI_AUD_CTS3_N_SHIFT_OFFSET = 5, HDMI_AUD_CTS3_N_SHIFT_MASK = 0xe0, -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/