From 8ba775ca0d375ab42404ffd7a1a38326a7b21321 Mon Sep 17 00:00:00 2001 From: Sumit Semwal Date: Mon, 24 Jan 2011 06:21:48 +0000 Subject: [PATCH] OMAP2, 3: DSS2: remove forced clk-disable from omap_dss_remove As part of omap hwmod changes, DSS will not be the only controller of its clocks. hwmod initialization also enables the interface clocks, and manages them. So, when DSS is built as a module, omap_dss_remove doesn't try to disable all clocks that have a higher usecount. Reviewed-by: Kevin Hilman Tested-by: Kevin Hilman Signed-off-by: Sumit Semwal Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/core.c | 46 ++++++---------------------------- 1 file changed, 7 insertions(+), 39 deletions(-) diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 8e89f6049280..ee56859c52ce 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -623,7 +623,6 @@ static int omap_dss_remove(struct platform_device *pdev) { struct omap_dss_board_info *pdata = pdev->dev.platform_data; int i; - int c; dss_uninitialize_debugfs(); @@ -638,44 +637,13 @@ static int omap_dss_remove(struct platform_device *pdev) dss_exit(); - /* these should be removed at some point */ - c = core.dss_ick->usecount; - if (c > 0) { - DSSERR("warning: dss_ick usecount %d, disabling\n", c); - while (c-- > 0) - clk_disable(core.dss_ick); - } - - c = core.dss1_fck->usecount; - if (c > 0) { - DSSERR("warning: dss1_fck usecount %d, disabling\n", c); - while (c-- > 0) - clk_disable(core.dss1_fck); - } - - c = core.dss2_fck->usecount; - if (c > 0) { - DSSERR("warning: dss2_fck usecount %d, disabling\n", c); - while (c-- > 0) - clk_disable(core.dss2_fck); - } - - c = core.dss_54m_fck->usecount; - if (c > 0) { - DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c); - while (c-- > 0) - clk_disable(core.dss_54m_fck); - } - - if (core.dss_96m_fck) { - c = core.dss_96m_fck->usecount; - if (c > 0) { - DSSERR("warning: dss_96m_fck usecount %d, disabling\n", - c); - while (c-- > 0) - clk_disable(core.dss_96m_fck); - } - } + /* + * As part of hwmod changes, DSS is not the only controller of dss + * clocks; hwmod framework itself will also enable clocks during hwmod + * init for dss, and autoidle is set in h/w for DSS. Hence, there's no + * need to disable clocks if their usecounts > 1. + */ + WARN_ON(core.num_clks_enabled > 0); dss_put_clocks(); -- 2.34.1