From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= Subject: [PATCH 1/8] ARM: etm: Don't require clock control Date: Mon, 14 Feb 2011 22:11:09 -0800 Message-ID: <1297750276-12475-1-git-send-email-arve@android.com> References: <1296701663-12168-1-git-send-email-arve@android.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-pw0-f46.google.com ([209.85.160.46]:45219 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751268Ab1BOGLq (ORCPT ); Tue, 15 Feb 2011 01:11:46 -0500 In-Reply-To: <1296701663-12168-1-git-send-email-arve@android.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org, =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= , Russell King , Alexander Shishkin , Jason Wessel , Greg Kroah-Hartman , linux-kernel@vger.kernel.org If clk_get fail, assume the etb does not need a separate clock. Signed-off-by: Arve Hj=C3=B8nnev=C3=A5g --- arch/arm/kernel/etm.c | 15 ++++++++------- 1 files changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 11db628..d4ec368 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -361,13 +361,12 @@ static int __init etb_probe(struct amba_device *d= ev, struct amba_id *id) if (ret) goto out_unmap; =20 + /* Get optional clock. Currently used to select clock source on omap3= */ t->emu_clk =3D clk_get(&dev->dev, "emu_src_ck"); - if (IS_ERR(t->emu_clk)) { + if (IS_ERR(t->emu_clk)) dev_dbg(&dev->dev, "Failed to obtain emu_src_ck.\n"); - return -EFAULT; - } - - clk_enable(t->emu_clk); + else + clk_enable(t->emu_clk); =20 etb_unlock(t); t->etb_bufsz =3D etb_readl(t, ETBR_DEPTH); @@ -402,8 +401,10 @@ static int etb_remove(struct amba_device *dev) iounmap(t->etb_regs); t->etb_regs =3D NULL; =20 - clk_disable(t->emu_clk); - clk_put(t->emu_clk); + if (!IS_ERR(t->emu_clk)) { + clk_disable(t->emu_clk); + clk_put(t->emu_clk); + } =20 amba_release_regions(dev); =20 --=20 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html