ASoC: codecs: wcd939x: Constify wcd939x_sdw_ch_info

Driver does not modify static wcd939x_sdw_ch_info array, so it can be
made const for code safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://msgid.link/r/20240612-asoc-wcd9xxx-wide-cleanups-v1-21-0d15885b2a06@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wcd939x-sdw.c

@@ -23,7 +23,7 @@
 
 #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
 
-static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
+static const struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HPH_L, WCD939X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_HPH_R, WCD939X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_CLSH, WCD939X_CLSH_PORT, BIT(0)),
@@ -36,7 +36,7 @@ static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HIFI_PCM_R, WCD939X_HIFI_PCM_PORT, BIT(1)),
 };
 
-static struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
+static const struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_ADC1, WCD939X_ADC_1_4_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_ADC2, WCD939X_ADC_1_4_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_ADC3, WCD939X_ADC_1_4_PORT, BIT(2)),

sound/soc/codecs/wcd939x.c

@@ -414,7 +414,7 @@ static int wcd939x_io_init(struct snd_soc_component *component)
 	return 0;
 }
 
-static int wcd939x_sdw_connect_port(struct wcd939x_sdw_ch_info *ch_info,
+static int wcd939x_sdw_connect_port(const struct wcd939x_sdw_ch_info *ch_info,
 				    struct sdw_port_config *port_config,
 				    u8 enable)
 {

sound/soc/codecs/wcd939x.h

@@ -914,7 +914,7 @@ struct wcd939x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD939X_MAX_SWR_PORTS];
-	struct wcd939x_sdw_ch_info *ch_info;
+	const struct wcd939x_sdw_ch_info *ch_info;
 	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
 	int active_ports;
 	int num_ports;