linux-kernel - [PATCH v2 14/14] soundwire: intel_init: add implementation of sdw_intel_enable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20191106191358.5712-15-pierre-louis.bossart@linux.intel.com>
Date:   Wed,  6 Nov 2019 13:13:58 -0600
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.de, broonie@...nel.org,
        vkoul@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: [PATCH v2 14/14] soundwire: intel_init: add implementation of sdw_intel_enable_irq()

This function is required to enable all interrupts across all links.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
 drivers/soundwire/intel_init.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c
index 42f7ae034bea..14ffe9ce2929 100644
--- a/drivers/soundwire/intel_init.c
+++ b/drivers/soundwire/intel_init.c
@@ -137,6 +137,30 @@ sdw_intel_scan_controller(struct sdw_intel_acpi_info *info)
 	return 0;
 }
 
+#define HDA_DSP_REG_ADSPIC2             (0x10)
+#define HDA_DSP_REG_ADSPIS2             (0x14)
+#define HDA_DSP_REG_ADSPIC2_SNDW        BIT(5)
+
+/**
+ * sdw_intel_enable_irq() - enable/disable Intel SoundWire IRQ
+ * @mmio_base: The mmio base of the control register
+ * @enable: true if enable
+ */
+void sdw_intel_enable_irq(void __iomem *mmio_base, bool enable)
+{
+	u32 val;
+
+	val = readl(mmio_base + HDA_DSP_REG_ADSPIC2);
+
+	if (enable)
+		val |= HDA_DSP_REG_ADSPIC2_SNDW;
+	else
+		val &= ~HDA_DSP_REG_ADSPIC2_SNDW;
+
+	writel(val, mmio_base + HDA_DSP_REG_ADSPIC2);
+}
+EXPORT_SYMBOL(sdw_intel_enable_irq);
+
 static struct sdw_intel_ctx
 *sdw_intel_probe_controller(struct sdw_intel_res *res)
 {
-- 
2.20.1