clk: qcom: Add EBI2 clocks for IPQ806x

The NAND controller within EBI2 requires EBI2_CLK and
EBI2_ALWAYS_ON_CLK clocks.  Create structs for these clocks so
that they can be used by the NAND controller driver. Add an entry
for EBI2_AON_CLK in the gcc-ipq806x DT binding document.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/qcom/gcc-ipq806x.c

@@ -2172,6 +2172,36 @@ static struct clk_branch usb_fs1_h_clk = {
 	},
 };
 
+static struct clk_branch ebi2_clk = {
+	.hwcg_reg = 0x3b00,
+	.hwcg_bit = 6,
+	.halt_reg = 0x2fcc,
+	.halt_bit = 1,
+	.clkr = {
+		.enable_reg = 0x3b00,
+		.enable_mask = BIT(4),
+		.hw.init = &(struct clk_init_data){
+			.name = "ebi2_clk",
+			.ops = &clk_branch_ops,
+			.flags = CLK_IS_ROOT,
+		},
+	},
+};
+
+static struct clk_branch ebi2_aon_clk = {
+	.halt_reg = 0x2fcc,
+	.halt_bit = 0,
+	.clkr = {
+		.enable_reg = 0x3b00,
+		.enable_mask = BIT(8),
+		.hw.init = &(struct clk_init_data){
+			.name = "ebi2_always_on_clk",
+			.ops = &clk_branch_ops,
+			.flags = CLK_IS_ROOT,
+		},
+	},
+};
+
 static struct clk_regmap *gcc_ipq806x_clks[] = {
 	[PLL0] = &pll0.clkr,
 	[PLL0_VOTE] = &pll0_vote,
@@ -2275,6 +2305,8 @@ static struct clk_regmap *gcc_ipq806x_clks[] = {
 	[USB_FS1_XCVR_SRC] = &usb_fs1_xcvr_clk_src.clkr,
 	[USB_FS1_XCVR_CLK] = &usb_fs1_xcvr_clk.clkr,
 	[USB_FS1_SYSTEM_CLK] = &usb_fs1_sys_clk.clkr,
+	[EBI2_CLK] = &ebi2_clk.clkr,
+	[EBI2_AON_CLK] = &ebi2_aon_clk.clkr,
 };
 
 static const struct qcom_reset_map gcc_ipq806x_resets[] = {

include/dt-bindings/clock/qcom,gcc-ipq806x.h

@@ -288,5 +288,6 @@
 #define UBI32_CORE2_CLK_SRC			278
 #define UBI32_CORE1_CLK				279
 #define UBI32_CORE2_CLK				280
+#define EBI2_AON_CLK				281
 
 #endif