pwm: meson: Add clock source configuration for Meson-AXG

For PWM controller in the Meson-AXG SoC, the EE domain and AO domain
have different clock sources. This patch tries to describe them in the
DT compatible data.

Signed-off-by: Jian Hu <[e-mail]>
Signed-off-by: Yixun Lan <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

drivers/pwm/pwm-meson.c

···
 	.num_parents = ARRAY_SIZE(pwm_gxbb_ao_parent_names),
 };
 
+static const char * const pwm_axg_ee_parent_names[] = {
+	"xtal", "fclk_div5", "fclk_div4", "fclk_div3"
+};
+
+static const struct meson_pwm_data pwm_axg_ee_data = {
+	.parent_names = pwm_axg_ee_parent_names,
+	.num_parents = ARRAY_SIZE(pwm_axg_ee_parent_names),
+};
+
+static const char * const pwm_axg_ao_parent_names[] = {
+	"aoclk81", "xtal", "fclk_div4", "fclk_div5"
+};
+
+static const struct meson_pwm_data pwm_axg_ao_data = {
+	.parent_names = pwm_axg_ao_parent_names,
+	.num_parents = ARRAY_SIZE(pwm_axg_ao_parent_names),
+};
+
 static const struct of_device_id meson_pwm_matches[] = {
 	{
 		.compatible = "amlogic,meson8b-pwm",
···
 	{
 		.compatible = "amlogic,meson-gxbb-ao-pwm",
 		.data = &pwm_gxbb_ao_data
+	},
+	{
+		.compatible = "amlogic,meson-axg-ee-pwm",
+		.data = &pwm_axg_ee_data
+	},
+	{
+		.compatible = "amlogic,meson-axg-ao-pwm",
+		.data = &pwm_axg_ao_data
 	},
 	{},
 };