#include <linux/mfd/qcom_rpm.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
+#include <linux/clk.h>
#include <dt-bindings/mfd/qcom-rpm.h>
struct qcom_rpm_data {
u32 version;
const struct qcom_rpm_resource *resource_table;
- unsigned n_resources;
+ unsigned int n_resources;
+ unsigned int req_ctx_off;
+ unsigned int req_sel_off;
+ unsigned int ack_ctx_off;
+ unsigned int ack_sel_off;
+ unsigned int req_sel_size;
+ unsigned int ack_sel_size;
};
struct qcom_rpm {
struct regmap *ipc_regmap;
unsigned ipc_offset;
unsigned ipc_bit;
+ struct clk *ramclk;
struct completion ack;
struct mutex lock;
#define RPM_REQUEST_TIMEOUT (5 * HZ)
-#define RPM_REQUEST_CONTEXT 3
-#define RPM_REQ_SELECT 11
-#define RPM_ACK_CONTEXT 15
-#define RPM_ACK_SELECTOR 23
-#define RPM_SELECT_SIZE 7
+#define RPM_MAX_SEL_SIZE 7
#define RPM_NOTIFICATION BIT(30)
#define RPM_REJECTED BIT(31)
-#define RPM_SIGNAL BIT(2)
-
static const struct qcom_rpm_resource apq8064_rpm_resource_table[] = {
[QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },
[QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 },
.version = 3,
.resource_table = apq8064_rpm_resource_table,
.n_resources = ARRAY_SIZE(apq8064_rpm_resource_table),
+ .req_ctx_off = 3,
+ .req_sel_off = 11,
+ .ack_ctx_off = 15,
+ .ack_sel_off = 23,
+ .req_sel_size = 4,
+ .ack_sel_size = 7,
};
static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = {
.version = 2,
.resource_table = msm8660_rpm_resource_table,
.n_resources = ARRAY_SIZE(msm8660_rpm_resource_table),
+ .req_ctx_off = 3,
+ .req_sel_off = 11,
+ .ack_ctx_off = 19,
+ .ack_sel_off = 27,
+ .req_sel_size = 7,
+ .ack_sel_size = 7,
};
static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = {
.version = 3,
.resource_table = msm8960_rpm_resource_table,
.n_resources = ARRAY_SIZE(msm8960_rpm_resource_table),
+ .req_ctx_off = 3,
+ .req_sel_off = 11,
+ .ack_ctx_off = 15,
+ .ack_sel_off = 23,
+ .req_sel_size = 4,
+ .ack_sel_size = 7,
};
static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = {
.version = 3,
.resource_table = ipq806x_rpm_resource_table,
.n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table),
+ .req_ctx_off = 3,
+ .req_sel_off = 11,
+ .ack_ctx_off = 15,
+ .ack_sel_off = 23,
+ .req_sel_size = 4,
+ .ack_sel_size = 7,
+};
+
+static const struct qcom_rpm_resource mdm9615_rpm_resource_table[] = {
+ [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },
+ [QCOM_RPM_SYS_FABRIC_CLK] = { 26, 10, 9, 1 },
+ [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 27, 11, 11, 1 },
+ [QCOM_RPM_SFPB_CLK] = { 28, 12, 12, 1 },
+ [QCOM_RPM_CFPB_CLK] = { 29, 13, 13, 1 },
+ [QCOM_RPM_EBI1_CLK] = { 30, 14, 16, 1 },
+ [QCOM_RPM_APPS_FABRIC_HALT] = { 31, 15, 22, 2 },
+ [QCOM_RPM_APPS_FABRIC_MODE] = { 33, 16, 23, 3 },
+ [QCOM_RPM_APPS_FABRIC_IOCTL] = { 36, 17, 24, 1 },
+ [QCOM_RPM_APPS_FABRIC_ARB] = { 37, 18, 25, 27 },
+ [QCOM_RPM_PM8018_SMPS1] = { 64, 19, 30, 2 },
+ [QCOM_RPM_PM8018_SMPS2] = { 66, 21, 31, 2 },
+ [QCOM_RPM_PM8018_SMPS3] = { 68, 23, 32, 2 },
+ [QCOM_RPM_PM8018_SMPS4] = { 70, 25, 33, 2 },
+ [QCOM_RPM_PM8018_SMPS5] = { 72, 27, 34, 2 },
+ [QCOM_RPM_PM8018_LDO1] = { 74, 29, 35, 2 },
+ [QCOM_RPM_PM8018_LDO2] = { 76, 31, 36, 2 },
+ [QCOM_RPM_PM8018_LDO3] = { 78, 33, 37, 2 },
+ [QCOM_RPM_PM8018_LDO4] = { 80, 35, 38, 2 },
+ [QCOM_RPM_PM8018_LDO5] = { 82, 37, 39, 2 },
+ [QCOM_RPM_PM8018_LDO6] = { 84, 39, 40, 2 },
+ [QCOM_RPM_PM8018_LDO7] = { 86, 41, 41, 2 },
+ [QCOM_RPM_PM8018_LDO8] = { 88, 43, 42, 2 },
+ [QCOM_RPM_PM8018_LDO9] = { 90, 45, 43, 2 },
+ [QCOM_RPM_PM8018_LDO10] = { 92, 47, 44, 2 },
+ [QCOM_RPM_PM8018_LDO11] = { 94, 49, 45, 2 },
+ [QCOM_RPM_PM8018_LDO12] = { 96, 51, 46, 2 },
+ [QCOM_RPM_PM8018_LDO13] = { 98, 53, 47, 2 },
+ [QCOM_RPM_PM8018_LDO14] = { 100, 55, 48, 2 },
+ [QCOM_RPM_PM8018_LVS1] = { 102, 57, 49, 1 },
+ [QCOM_RPM_PM8018_NCP] = { 103, 58, 80, 2 },
+ [QCOM_RPM_CXO_BUFFERS] = { 105, 60, 81, 1 },
+ [QCOM_RPM_USB_OTG_SWITCH] = { 106, 61, 82, 1 },
+ [QCOM_RPM_HDMI_SWITCH] = { 107, 62, 83, 1 },
+ [QCOM_RPM_VOLTAGE_CORNER] = { 109, 64, 87, 1 },
+};
+
+static const struct qcom_rpm_data mdm9615_template = {
+ .version = 3,
+ .resource_table = mdm9615_rpm_resource_table,
+ .n_resources = ARRAY_SIZE(mdm9615_rpm_resource_table),
+ .req_ctx_off = 3,
+ .req_sel_off = 11,
+ .ack_ctx_off = 15,
+ .ack_sel_off = 23,
+ .req_sel_size = 4,
+ .ack_sel_size = 7,
};
static const struct of_device_id qcom_rpm_of_match[] = {
{ .compatible = "qcom,rpm-msm8660", .data = &msm8660_template },
{ .compatible = "qcom,rpm-msm8960", .data = &msm8960_template },
{ .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template },
+ { .compatible = "qcom,rpm-mdm9615", .data = &mdm9615_template },
{ }
};
MODULE_DEVICE_TABLE(of, qcom_rpm_of_match);
{
const struct qcom_rpm_resource *res;
const struct qcom_rpm_data *data = rpm->data;
- u32 sel_mask[RPM_SELECT_SIZE] = { 0 };
+ u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 };
int left;
int ret = 0;
int i;
writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i));
bitmap_set((unsigned long *)sel_mask, res->select_id, 1);
- for (i = 0; i < ARRAY_SIZE(sel_mask); i++) {
+ for (i = 0; i < rpm->data->req_sel_size; i++) {
writel_relaxed(sel_mask[i],
- RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i));
+ RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i));
}
- writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT));
+ writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off));
reinit_completion(&rpm->ack);
regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit));
u32 ack;
int i;
- ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
- for (i = 0; i < RPM_SELECT_SIZE; i++)
- writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i));
- writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
+ ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
+ for (i = 0; i < rpm->data->ack_sel_size; i++)
+ writel_relaxed(0,
+ RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i));
+ writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
if (ack & RPM_NOTIFICATION) {
dev_warn(rpm->dev, "ignoring notification!\n");
mutex_init(&rpm->lock);
init_completion(&rpm->ack);
+ /* Enable message RAM clock */
+ rpm->ramclk = devm_clk_get(&pdev->dev, "ram");
+ if (IS_ERR(rpm->ramclk)) {
+ ret = PTR_ERR(rpm->ramclk);
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ /*
+ * Fall through in all other cases, as the clock is
+ * optional. (Does not exist on all platforms.)
+ */
+ rpm->ramclk = NULL;
+ }
+ clk_prepare_enable(rpm->ramclk); /* Accepts NULL */
+
irq_ack = platform_get_irq_byname(pdev, "ack");
if (irq_ack < 0) {
dev_err(&pdev->dev, "required ack interrupt missing\n");
}
rpm->ipc_regmap = syscon_node_to_regmap(syscon_np);
+ of_node_put(syscon_np);
if (IS_ERR(rpm->ipc_regmap))
return PTR_ERR(rpm->ipc_regmap);
static int qcom_rpm_remove(struct platform_device *pdev)
{
+ struct qcom_rpm *rpm = dev_get_drvdata(&pdev->dev);
+
of_platform_depopulate(&pdev->dev);
+ clk_disable_unprepare(rpm->ramclk);
+
return 0;
}
projects / cascardo / linux.git / blobdiff