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Thu, 05 Nov 2020 06:52:37 -0800 (PST) From: Lee Jones To: lee.jones@linaro.org Cc: linux-kernel@vger.kernel.org, Andrzej Hajda , Neil Armstrong , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , Jason Yan , Jingoo Han , dri-devel@lists.freedesktop.org Subject: [PATCH 19/19] gpu: drm: bridge: analogix: analogix_dp_reg: Remove unused function 'analogix_dp_start_aux_transaction' Date: Thu, 5 Nov 2020 14:45:17 +0000 Message-Id: <20201105144517.1826692-20-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201105144517.1826692-1-lee.jones@linaro.org> References: <20201105144517.1826692-1-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c:527:12: warning: ‘analogix_dp_start_aux_transaction’ defined but not used [-Wunused-function] Cc: Andrzej Hajda Cc: Neil Armstrong Cc: Laurent Pinchart Cc: Jonas Karlman Cc: Jernej Skrabec Cc: David Airlie Cc: Daniel Vetter Cc: Jason Yan Cc: Lee Jones Cc: Jingoo Han Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones --- .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 44 ------------------- 1 file changed, 44 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index 9ce45c757f8c8..cab6c8b92efd4 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -524,50 +524,6 @@ void analogix_dp_enable_sw_function(struct analogix_dp_device *dp) writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1); } -static int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp) -{ - int reg; - int retval = 0; - int timeout_loop = 0; - - /* Enable AUX CH operation */ - reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2); - reg |= AUX_EN; - writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2); - - /* Is AUX CH command reply received? */ - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - while (!(reg & RPLY_RECEIV)) { - timeout_loop++; - if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) { - dev_err(dp->dev, "AUX CH command reply failed!\n"); - return -ETIMEDOUT; - } - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - usleep_range(10, 11); - } - - /* Clear interrupt source for AUX CH command reply */ - writel(RPLY_RECEIV, dp->reg_base + ANALOGIX_DP_INT_STA); - - /* Clear interrupt source for AUX CH access error */ - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA); - if (reg & AUX_ERR) { - writel(AUX_ERR, dp->reg_base + ANALOGIX_DP_INT_STA); - return -EREMOTEIO; - } - - /* Check AUX CH error access status */ - reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_STA); - if ((reg & AUX_STATUS_MASK) != 0) { - dev_err(dp->dev, "AUX CH error happens: %d\n\n", - reg & AUX_STATUS_MASK); - return -EREMOTEIO; - } - - return retval; -} - void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype) { u32 reg; -- 2.25.1