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Thu, 02 Jan 2020 22:52:32 -0800 Received: from mtkmbs05n2.mediatek.inc (172.21.101.140) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 2 Jan 2020 22:44:16 -0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 3 Jan 2020 14:43:40 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 3 Jan 2020 14:44:09 +0800 From: Michael Kao To: Zhang Rui , Eduardo Valentin , Daniel Lezcano , Rob Herring , Mark Rutland , Matthias Brugger , , , Subject: [PATCH v3,8/8] thermal: mediatek: use spinlock to protect PTPCORESEL Date: Fri, 3 Jan 2020 14:44:07 +0800 Message-ID: <20200103064407.19861-9-michael.kao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200103064407.19861-1-michael.kao@mediatek.com> References: <20200103064407.19861-1-michael.kao@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200102_225237_875581_ED3F817D X-CRM114-Status: GOOD ( 11.67 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, "michael.kao" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: "michael.kao" The driver of thermal and svs will use the same register for the project which should select bank before reading sensor value. Signed-off-by: Michael Kao --- drivers/thermal/mtk_thermal.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c index 9be9fcb18d9e..639d34ed223b 100644 --- a/drivers/thermal/mtk_thermal.c +++ b/drivers/thermal/mtk_thermal.c @@ -22,6 +22,7 @@ #include #include #include +#include /* AUXADC Registers */ #define AUXADC_CON1_SET_V 0x008 @@ -262,7 +263,7 @@ struct mtk_thermal { struct clk *clk_peri_therm; struct clk *clk_auxadc; /* lock: for getting and putting banks */ - struct mutex lock; + unsigned long flags; /* Calibration values */ s32 adc_ge; @@ -561,7 +562,7 @@ static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank) u32 val; if (mt->conf->need_switch_bank) { - mutex_lock(&mt->lock); + mt->flags = claim_mtk_svs_lock(); val = readl(mt->thermal_base + PTPCORESEL); val &= ~0xf; @@ -581,7 +582,7 @@ static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) struct mtk_thermal *mt = bank->mt; if (mt->conf->need_switch_bank) - mutex_unlock(&mt->lock); + release_mtk_svs_lock(mt->flags); } /** @@ -936,8 +937,6 @@ static int mtk_thermal_probe(struct platform_device *pdev) if (ret) return ret; - mutex_init(&mt->lock); - mt->dev = &pdev->dev; auxadc = of_parse_phandle(np, "mediatek,auxadc", 0);