diff mbox series

[2/2] soundwire: qcom: get max rows and cols info from compatible

Message ID 20200909160912.3656-3-srinivas.kandagatla@linaro.org
State New
Headers show
Series soundwire: qcom: fix IP version v1.5.1 support | expand

Commit Message

Srinivas Kandagatla Sept. 9, 2020, 4:09 p.m. UTC 
currently the max rows and cols values are hardcoded. In reality
these values depend on the IP version. So get these based on
device tree compatible strings.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 drivers/soundwire/qcom.c | 46 +++++++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 1ec0ee931f5b..03c5bc05fc6e 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -69,11 +69,6 @@ 
 #define SWRM_REG_VAL_PACK(data, dev, id, reg)	\
 			((reg) | ((id) << 16) | ((dev) << 20) | ((data) << 24))
 
-#define SWRM_MAX_ROW_VAL	0 /* Rows = 48 */
-#define SWRM_DEFAULT_ROWS	48
-#define SWRM_MIN_COL_VAL	0 /* Cols = 2 */
-#define SWRM_DEFAULT_COL	16
-#define SWRM_MAX_COL_VAL	7
 #define SWRM_SPECIAL_CMD_ID	0xF
 #define MAX_FREQ_NUM		1
 #define TIMEOUT_MS		(2 * HZ)
@@ -107,6 +102,8 @@  struct qcom_swrm_ctrl {
 	unsigned int version;
 	int num_din_ports;
 	int num_dout_ports;
+	int cols_index;
+	int rows_index;
 	unsigned long dout_port_mask;
 	unsigned long din_port_mask;
 	struct qcom_swrm_port_config pconfig[QCOM_SDW_MAX_PORTS];
@@ -116,6 +113,21 @@  struct qcom_swrm_ctrl {
 	int (*reg_write)(struct qcom_swrm_ctrl *ctrl, int reg, int val);
 };
 
+struct qcom_swrm_data {
+	int default_cols;
+	int default_rows;
+};
+
+static struct qcom_swrm_data swrm_v1_3_data = {
+	.default_rows = 48,
+	.default_cols = 16,
+};
+
+static struct qcom_swrm_data swrm_v1_5_data = {
+	.default_rows = 50,
+	.default_cols = 16,
+};
+
 #define to_qcom_sdw(b)	container_of(b, struct qcom_swrm_ctrl, bus)
 
 static int qcom_swrm_ahb_reg_read(struct qcom_swrm_ctrl *ctrl, int reg,
@@ -302,8 +314,8 @@  static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
 	u32 val;
 
 	/* Clear Rows and Cols */
-	val = (SWRM_MAX_ROW_VAL << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT |
-	       SWRM_MIN_COL_VAL << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT);
+	val = ctrl->rows_index << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT |
+		ctrl->cols_index << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT;
 
 	ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val);
 
@@ -382,8 +394,8 @@  static int qcom_swrm_pre_bank_switch(struct sdw_bus *bus)
 	val &= ~SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK;
 	val &= ~SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK;
 
-	val |= (SWRM_MAX_ROW_VAL << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT |
-		SWRM_MAX_COL_VAL << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT);
+	val |= ctrl->rows_index << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT |
+	       ctrl->cols_index << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT;
 
 	return ctrl->reg_write(ctrl, reg, val);
 }
@@ -784,6 +796,7 @@  static int qcom_swrm_probe(struct platform_device *pdev)
 	struct sdw_master_prop *prop;
 	struct sdw_bus_params *params;
 	struct qcom_swrm_ctrl *ctrl;
+	const struct qcom_swrm_data *data;
 	struct resource *res;
 	int ret;
 	u32 val;
@@ -792,6 +805,9 @@  static int qcom_swrm_probe(struct platform_device *pdev)
 	if (!ctrl)
 		return -ENOMEM;
 
+	data = of_device_get_match_data(dev);
+	ctrl->rows_index = sdw_find_row_index(data->default_rows);
+	ctrl->cols_index = sdw_find_col_index(data->default_cols);
 #ifdef CONFIG_SLIMBUS
 	if (dev->parent->bus == &slimbus_bus) {
 #else
@@ -844,8 +860,8 @@  static int qcom_swrm_probe(struct platform_device *pdev)
 	params = &ctrl->bus.params;
 	params->max_dr_freq = DEFAULT_CLK_FREQ;
 	params->curr_dr_freq = DEFAULT_CLK_FREQ;
-	params->col = SWRM_DEFAULT_COL;
-	params->row = SWRM_DEFAULT_ROWS;
+	params->col = data->default_cols;
+	params->row = data->default_rows;
 	ctrl->reg_read(ctrl, SWRM_MCP_STATUS, &val);
 	params->curr_bank = val & SWRM_MCP_STATUS_BANK_NUM_MASK;
 	params->next_bank = !params->curr_bank;
@@ -855,8 +871,8 @@  static int qcom_swrm_probe(struct platform_device *pdev)
 	prop->num_clk_gears = 0;
 	prop->num_clk_freq = MAX_FREQ_NUM;
 	prop->clk_freq = &qcom_swrm_freq_tbl[0];
-	prop->default_col = SWRM_DEFAULT_COL;
-	prop->default_row = SWRM_DEFAULT_ROWS;
+	prop->default_col = data->default_cols;
+	prop->default_row = data->default_rows;
 
 	ctrl->reg_read(ctrl, SWRM_COMP_HW_VERSION, &ctrl->version);
 
@@ -907,8 +923,8 @@  static int qcom_swrm_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id qcom_swrm_of_match[] = {
-	{ .compatible = "qcom,soundwire-v1.3.0", },
-	{ .compatible = "qcom,soundwire-v1.5.1", },
+	{ .compatible = "qcom,soundwire-v1.3.0", .data = &swrm_v1_3_data },
+	{ .compatible = "qcom,soundwire-v1.5.1", .data = &swrm_v1_5_data },
 	{/* sentinel */},
 };