From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Keeping Subject: [PATCH 18/27] drm/rockchip: dw-mipi-dsi: configure bias and bandgap before enable Date: Mon, 19 Sep 2016 18:17:32 +0100 Message-ID: <20160919171747.28512-23-john@metanate.com> References: <20160919171747.28512-1-john@metanate.com> Return-path: In-Reply-To: <20160919171747.28512-1-john@metanate.com> Sender: linux-kernel-owner@vger.kernel.org To: Mark Yao Cc: Heiko Stuebner , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, John Keeping List-Id: linux-rockchip.vger.kernel.org We should configure these functions before enabling them. Signed-off-by: John Keeping --- drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index e310c3d81bb8..65c89367d8b2 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -421,6 +421,11 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) dw_mipi_dsi_phy_write(dsi, 0x18, LOOP_DIV_HIGH_SEL(dsi->feedback_div) | HIGH_PROGRAM_EN); + dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN | + BIASEXTR_SEL(BIASEXTR_127_7)); + dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN | + BANDGAP_SEL(BANDGAP_96_10)); + dw_mipi_dsi_phy_write(dsi, 0x20, POWER_CONTROL | INTERNAL_REG_CURRENT | BIAS_BLOCK_ON | BANDGAP_ON); @@ -430,10 +435,6 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) SETRD_MAX | POWER_MANAGE | TER_RESISTORS_ON); - dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN | - BIASEXTR_SEL(BIASEXTR_127_7)); - dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN | - BANDGAP_SEL(BANDGAP_96_10)); dw_mipi_dsi_phy_write(dsi, 0x70, TLP_PROGRAM_EN | 0xf); dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x55); -- 2.10.0.278.g4f427b1.dirty