clk: oxnas: Add OX820 Gate clocks

Add support for the Oxford Semiconductor OX820 SoC gate clocks
along the OX810SE SoC support.
This rework on concerns the gate clocks since they are different.
Future PLL handling code will be added for OX820.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20161005150752.22618-6-narmstrong@baylibre.com

drivers/clk/clk-oxnas.c

@@ -27,6 +27,7 @@
 #include <linux/mfd/syscon.h>
 
 #include <dt-bindings/clock/oxsemi,ox810se.h>
+#include <dt-bindings/clock/oxsemi,ox820.h>
 
 /* Standard regmap gate clocks */
 struct clk_oxnas_gate {
@@ -130,6 +131,38 @@ static struct clk_oxnas_gate *ox810se_gates[] = {
 	&ox810se_nand,
 };
 
+static OXNAS_GATE(ox820_leon, 0, osc_parents);
+static OXNAS_GATE(ox820_dma_sgdma, 1, osc_parents);
+static OXNAS_GATE(ox820_cipher, 2, osc_parents);
+static OXNAS_GATE(ox820_sd, 3, osc_parents);
+static OXNAS_GATE(ox820_sata, 4, osc_parents);
+static OXNAS_GATE(ox820_audio, 5, osc_parents);
+static OXNAS_GATE(ox820_usbmph, 6, osc_parents);
+static OXNAS_GATE(ox820_etha, 7, eth_parents);
+static OXNAS_GATE(ox820_pciea, 8, osc_parents);
+static OXNAS_GATE(ox820_nand, 9, osc_parents);
+static OXNAS_GATE(ox820_ethb, 10, eth_parents);
+static OXNAS_GATE(ox820_pcieb, 11, osc_parents);
+static OXNAS_GATE(ox820_ref600, 12, osc_parents);
+static OXNAS_GATE(ox820_usbdev, 13, osc_parents);
+
+static struct clk_oxnas_gate *ox820_gates[] = {
+	&ox820_leon,
+	&ox820_dma_sgdma,
+	&ox820_cipher,
+	&ox820_sd,
+	&ox820_sata,
+	&ox820_audio,
+	&ox820_usbmph,
+	&ox820_etha,
+	&ox820_pciea,
+	&ox820_nand,
+	&ox820_etha,
+	&ox820_pciea,
+	&ox820_ref600,
+	&ox820_usbdev,
+};
+
 static struct clk_hw_onecell_data ox810se_hw_onecell_data = {
 	.hws = {
 		[CLK_810_LEON]	= &ox810se_leon.hw,
@@ -145,6 +178,25 @@ static struct clk_hw_onecell_data ox810se_hw_onecell_data = {
 	.num = ARRAY_SIZE(ox810se_gates),
 };
 
+static struct clk_hw_onecell_data ox820_hw_onecell_data = {
+	.hws = {
+		[CLK_820_LEON]	= &ox820_leon.hw,
+		[CLK_820_DMA_SGDMA]	= &ox820_dma_sgdma.hw,
+		[CLK_820_CIPHER]	= &ox820_cipher.hw,
+		[CLK_820_SD]	= &ox820_sd.hw,
+		[CLK_820_SATA]	= &ox820_sata.hw,
+		[CLK_820_AUDIO]	= &ox820_audio.hw,
+		[CLK_820_USBMPH]	= &ox820_usbmph.hw,
+		[CLK_820_ETHA]	= &ox820_etha.hw,
+		[CLK_820_PCIEA]	= &ox820_pciea.hw,
+		[CLK_820_NAND]	= &ox820_nand.hw,
+		[CLK_820_ETHB]	= &ox820_ethb.hw,
+		[CLK_820_PCIEB]	= &ox820_pcieb.hw,
+		[CLK_820_REF600]	= &ox820_ref600.hw,
+		[CLK_820_USBDEV]	= &ox820_usbdev.hw,
+	},
+	.num = ARRAY_SIZE(ox820_gates),
+};
 
 static struct oxnas_stdclk_data ox810se_stdclk_data = {
 	.onecell_data = &ox810se_hw_onecell_data,
@@ -152,9 +204,15 @@ static struct oxnas_stdclk_data ox810se_stdclk_data = {
 	.ngates = ARRAY_SIZE(ox810se_gates),
 };
 
+static struct oxnas_stdclk_data ox820_stdclk_data = {
+	.onecell_data = &ox820_hw_onecell_data,
+	.gates = ox820_gates,
+	.ngates = ARRAY_SIZE(ox820_gates),
+};
 
 static const struct of_device_id oxnas_stdclk_dt_ids[] = {
 	{ .compatible = "oxsemi,ox810se-stdclk", &ox810se_stdclk_data },
+	{ .compatible = "oxsemi,ox820-stdclk", &ox820_stdclk_data },
 	{ }
 };