clk: bcm: rpi: Give firmware clocks a name

We've registered the firmware clocks using their ID as name, but it's much
more convenient to register them using their proper name. Since the
firmware doesn't provide it, we have to duplicate it.

Acked-by: Nicolas Saenz Julienne <[email protected]>
Tested-by: Nicolas Saenz Julienne <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://lore.kernel.org/r/a52a5f5768cd33716cdd35237c6613f26ad75013.1592210452.git-series.maxime@cerno.tech
Signed-off-by: Stephen Boyd <[email protected]>

Author: mripard

drivers/clk/bcm/clk-raspberrypi.c

@@ -36,6 +36,23 @@ enum rpi_firmware_clk_id {
 	RPI_FIRMWARE_NUM_CLK_ID,
 };
 
+static char *rpi_firmware_clk_names[] = {
+	[RPI_FIRMWARE_EMMC_CLK_ID]	= "emmc",
+	[RPI_FIRMWARE_UART_CLK_ID]	= "uart",
+	[RPI_FIRMWARE_ARM_CLK_ID]	= "arm",
+	[RPI_FIRMWARE_CORE_CLK_ID]	= "core",
+	[RPI_FIRMWARE_V3D_CLK_ID]	= "v3d",
+	[RPI_FIRMWARE_H264_CLK_ID]	= "h264",
+	[RPI_FIRMWARE_ISP_CLK_ID]	= "isp",
+	[RPI_FIRMWARE_SDRAM_CLK_ID]	= "sdram",
+	[RPI_FIRMWARE_PIXEL_CLK_ID]	= "pixel",
+	[RPI_FIRMWARE_PWM_CLK_ID]	= "pwm",
+	[RPI_FIRMWARE_HEVC_CLK_ID]	= "hevc",
+	[RPI_FIRMWARE_EMMC2_CLK_ID]	= "emmc2",
+	[RPI_FIRMWARE_M2MC_CLK_ID]	= "m2mc",
+	[RPI_FIRMWARE_PIXEL_BVB_CLK_ID]	= "pixel-bvb",
+};
+
 #define RPI_FIRMWARE_STATE_ENABLE_BIT	BIT(0)
 #define RPI_FIRMWARE_STATE_WAIT_BIT	BIT(1)
 
@@ -343,7 +360,9 @@ static struct clk_hw *raspberrypi_clk_register(struct raspberrypi_clk *rpi,
 	data->rpi = rpi;
 	data->id = id;
 
-	init.name = devm_kasprintf(rpi->dev, GFP_KERNEL, "fw-clk-%u", id);
+	init.name = devm_kasprintf(rpi->dev, GFP_KERNEL,
+				   "fw-clk-%s",
+				   rpi_firmware_clk_names[id]);
 	init.ops = &raspberrypi_firmware_clk_ops;
 	init.flags = CLK_GET_RATE_NOCACHE;