clk: vc5: Add support for IDT/Renesas VersaClock 5P49V6975

Update IDT VersaClock 5 driver to support 5P49V6975. The 5P49V6975 is a
member of the VersaClock 6E family and supports four fractional dividers
(FODs), five clock outputs and an internal oscillator.

Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Link: https://lore.kernel.org/r/20220511053455.360335-2-matthias.fend@emfend.at
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: emfend

drivers/clk/clk-versaclock5.c

@@ -153,6 +153,7 @@ enum vc5_model {
 	IDT_VC5_5P49V5935,
 	IDT_VC6_5P49V6901,
 	IDT_VC6_5P49V6965,
+	IDT_VC6_5P49V6975,
 };
 
 /* Structure to describe features of a particular VC5 model */
@@ -753,6 +754,7 @@ static int vc5_map_index_to_output(const enum vc5_model model,
 	case IDT_VC5_5P49V5935:
 	case IDT_VC6_5P49V6901:
 	case IDT_VC6_5P49V6965:
+	case IDT_VC6_5P49V6975:
 	default:
 		return n;
 	}
@@ -1250,13 +1252,21 @@ static const struct vc5_chip_info idt_5p49v6965_info = {
 	.flags = VC5_HAS_BYPASS_SYNC_BIT,
 };
 
+static const struct vc5_chip_info idt_5p49v6975_info = {
+	.model = IDT_VC6_5P49V6975,
+	.clk_fod_cnt = 4,
+	.clk_out_cnt = 5,
+	.flags = VC5_HAS_BYPASS_SYNC_BIT | VC5_HAS_INTERNAL_XTAL,
+};
+
 static const struct i2c_device_id vc5_id[] = {
 	{ "5p49v5923", .driver_data = IDT_VC5_5P49V5923 },
 	{ "5p49v5925", .driver_data = IDT_VC5_5P49V5925 },
 	{ "5p49v5933", .driver_data = IDT_VC5_5P49V5933 },
 	{ "5p49v5935", .driver_data = IDT_VC5_5P49V5935 },
 	{ "5p49v6901", .driver_data = IDT_VC6_5P49V6901 },
 	{ "5p49v6965", .driver_data = IDT_VC6_5P49V6965 },
+	{ "5p49v6975", .driver_data = IDT_VC6_5P49V6975 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, vc5_id);
@@ -1268,6 +1278,7 @@ static const struct of_device_id clk_vc5_of_match[] = {
 	{ .compatible = "idt,5p49v5935", .data = &idt_5p49v5935_info },
 	{ .compatible = "idt,5p49v6901", .data = &idt_5p49v6901_info },
 	{ .compatible = "idt,5p49v6965", .data = &idt_5p49v6965_info },
+	{ .compatible = "idt,5p49v6975", .data = &idt_5p49v6975_info },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, clk_vc5_of_match);