From patchwork Mon Apr 8 08:55:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: archit taneja X-Patchwork-Id: 2405671 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 9A3C3DFB78 for ; Mon, 8 Apr 2013 08:56:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762723Ab3DHI4s (ORCPT ); Mon, 8 Apr 2013 04:56:48 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:60706 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759359Ab3DHI4s (ORCPT ); Mon, 8 Apr 2013 04:56:48 -0400 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r388ulww029582; Mon, 8 Apr 2013 03:56:47 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r388ulfC028001; Mon, 8 Apr 2013 03:56:47 -0500 Received: from dlelxv23.itg.ti.com (172.17.1.198) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Mon, 8 Apr 2013 03:56:47 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv23.itg.ti.com (8.13.8/8.13.8) with ESMTP id r388ul5e015641; Mon, 8 Apr 2013 03:56:47 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.136.59]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r388ujV13992; Mon, 8 Apr 2013 03:56:45 -0500 (CDT) From: Archit Taneja To: CC: , , Archit Taneja Subject: [PATCH] omapdss: use devm_clk_get() Date: Mon, 8 Apr 2013 14:25:46 +0530 Message-ID: <1365411346-30611-1-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.7.10.4 MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Use devm_clk_get() instead of clk_get() for dss, and for outputs hdmi and venc. This reduces reduces code and simplifies error handling. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dss.c | 18 +++--------------- drivers/video/omap2/dss/hdmi.c | 16 ++-------------- drivers/video/omap2/dss/venc.c | 10 +--------- 3 files changed, 6 insertions(+), 38 deletions(-) diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 054c2a2..645b3bc 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -767,13 +767,11 @@ int dss_dpi_select_source(enum omap_channel channel) static int dss_get_clocks(void) { struct clk *clk; - int r; - clk = clk_get(&dss.pdev->dev, "fck"); + clk = devm_clk_get(&dss.pdev->dev, "fck"); if (IS_ERR(clk)) { DSSERR("can't get clock fck\n"); - r = PTR_ERR(clk); - goto err; + return PTR_ERR(clk); } dss.dss_clk = clk; @@ -782,8 +780,7 @@ static int dss_get_clocks(void) clk = clk_get(NULL, dss.feat->clk_name); if (IS_ERR(clk)) { DSSERR("Failed to get %s\n", dss.feat->clk_name); - r = PTR_ERR(clk); - goto err; + return PTR_ERR(clk); } } else { clk = NULL; @@ -792,21 +789,12 @@ static int dss_get_clocks(void) dss.dpll4_m4_ck = clk; return 0; - -err: - if (dss.dss_clk) - clk_put(dss.dss_clk); - if (dss.dpll4_m4_ck) - clk_put(dss.dpll4_m4_ck); - - return r; } static void dss_put_clocks(void) { if (dss.dpll4_m4_ck) clk_put(dss.dpll4_m4_ck); - clk_put(dss.dss_clk); } static int dss_runtime_get(void) diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 7292364..c7e0bf7 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -804,7 +804,7 @@ static int hdmi_get_clocks(struct platform_device *pdev) { struct clk *clk; - clk = clk_get(&pdev->dev, "sys_clk"); + clk = devm_clk_get(&pdev->dev, "sys_clk"); if (IS_ERR(clk)) { DSSERR("can't get sys_clk\n"); return PTR_ERR(clk); @@ -815,12 +815,6 @@ static int hdmi_get_clocks(struct platform_device *pdev) return 0; } -static void hdmi_put_clocks(void) -{ - if (hdmi.sys_clk) - clk_put(hdmi.sys_clk); -} - #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO) int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts) { @@ -1100,7 +1094,7 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev) r = hdmi_panel_init(); if (r) { DSSERR("can't init panel\n"); - goto err_panel_init; + return r; } dss_debugfs_create_file("hdmi", hdmi_dump_regs); @@ -1110,10 +1104,6 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev) hdmi_probe_pdata(pdev); return 0; - -err_panel_init: - hdmi_put_clocks(); - return r; } static int __exit hdmi_remove_child(struct device *dev, void *data) @@ -1135,8 +1125,6 @@ static int __exit omapdss_hdmihw_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); - hdmi_put_clocks(); - return 0; } diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 006caf3..c27ab6f 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -721,7 +721,7 @@ static int venc_get_clocks(struct platform_device *pdev) struct clk *clk; if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) { - clk = clk_get(&pdev->dev, "tv_dac_clk"); + clk = devm_clk_get(&pdev->dev, "tv_dac_clk"); if (IS_ERR(clk)) { DSSERR("can't get tv_dac_clk\n"); return PTR_ERR(clk); @@ -735,12 +735,6 @@ static int venc_get_clocks(struct platform_device *pdev) return 0; } -static void venc_put_clocks(void) -{ - if (venc.tv_dac_clk) - clk_put(venc.tv_dac_clk); -} - static struct omap_dss_device * __init venc_find_dssdev(struct platform_device *pdev) { struct omap_dss_board_info *pdata = pdev->dev.platform_data; @@ -886,7 +880,6 @@ static int __init omap_venchw_probe(struct platform_device *pdev) err_panel_init: err_runtime_get: pm_runtime_disable(&pdev->dev); - venc_put_clocks(); return r; } @@ -904,7 +897,6 @@ static int __exit omap_venchw_remove(struct platform_device *pdev) venc_uninit_output(pdev); pm_runtime_disable(&pdev->dev); - venc_put_clocks(); return 0; }