Merge "soc: qcom: Add CTI trigger support for DCC" into msm-4.9 (c86364bb) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/soc/qcom/dcc_v2.c

+41 −1

Original line number	Diff line number	Diff line
		@@ -154,6 +154,7 @@ struct dcc_drvdata {
		void *sram_buf;
		struct msm_dump_data sram_data;
		uint8_t curr_list;
		uint8_t cti_trig;
		};

		static bool dcc_ready(struct dcc_drvdata *drvdata)
		@@ -601,7 +602,8 @@ static int dcc_enable(struct dcc_drvdata *drvdata)
		}

		/* 4. Configure trigger, data sink and function type */
		dcc_writel(drvdata, BIT(9) \| ((drvdata->data_sink << 4) \|
		dcc_writel(drvdata, BIT(9) \| ((drvdata->cti_trig << 8) \|
		(drvdata->data_sink << 4) \|
		(drvdata->func_type[list])), DCC_LL_CFG(list));

		/* 5. Clears interrupt status register */
		@@ -1252,6 +1254,43 @@ static ssize_t dcc_write(struct device *dev,
		}
		static DEVICE_ATTR(config_write, 0200, NULL, dcc_write);

		static ssize_t dcc_show_cti_trig(struct device *dev,
		struct device_attribute attr, char buf)
		{
		struct dcc_drvdata *drvdata = dev_get_drvdata(dev);

		return scnprintf(buf, PAGE_SIZE, "%d\n", drvdata->cti_trig);
		}

		static ssize_t dcc_store_cti_trig(struct device *dev,
		struct device_attribute *attr,
		const char *buf, size_t size)
		{
		unsigned long val;
		int ret = 0;
		struct dcc_drvdata *drvdata = dev_get_drvdata(dev);

		if (kstrtoul(buf, 16, &val))
		return -EINVAL;

		mutex_lock(&drvdata->mutex);

		if (drvdata->enable[drvdata->curr_list]) {
		ret = -EBUSY;
		goto out;
		}

		if (val)
		drvdata->cti_trig = 1;
		else
		drvdata->cti_trig = 0;
		out:
		mutex_unlock(&drvdata->mutex);
		return ret;
		}
		static DEVICE_ATTR(cti_trig, 0644,
		dcc_show_cti_trig, dcc_store_cti_trig);

		static const struct device_attribute *dcc_attrs[] = {
		&dev_attr_func_type,
		&dev_attr_data_sink,
		@@ -1266,6 +1305,7 @@ static const struct device_attribute *dcc_attrs[] = {
		&dev_attr_rd_mod_wr,
		&dev_attr_curr_list,
		&dev_attr_config_write,
		&dev_attr_cti_trig,
		NULL,
		};