Re: [PATCH] MIPS: mt7620: Rename uartlite to serial

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Hi,


comments inline


On 01/09/17 16:53, Harvey Hunt wrote:
Previously, mt7620.c defined the clocks for uarts with the names
uartlite, uart1 and uart2. Rename them to serial{0,1,2} and update
the devicetree node names.

Signed-off-by: Harvey Hunt <harvey.hunt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
  arch/mips/boot/dts/ralink/mt7620a.dtsi |  2 +-
  arch/mips/boot/dts/ralink/mt7628a.dtsi |  6 +++---
  arch/mips/ralink/mt7620.c              | 14 +++++++-------
  3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/mips/boot/dts/ralink/mt7620a.dtsi b/arch/mips/boot/dts/ralink/mt7620a.dtsi
index 793c0c7..58bd002 100644
--- a/arch/mips/boot/dts/ralink/mt7620a.dtsi
+++ b/arch/mips/boot/dts/ralink/mt7620a.dtsi
@@ -45,7 +45,7 @@
  			reg = <0x300 0x100>;
  		};
- uartlite@c00 {
+		serial0@c00 {
the uartlite is indeed not a full uart, having only rx/tx lines and missing various other features. i would prefer to keep it as is. you cannot connect a modem to the port for example as that would require HW handshake for example. Also making these changes will break compatibility with existing devicetrees.

    John

  			compatible = "ralink,mt7620a-uart", "ralink,rt2880-uart", "ns16550a";
  			reg = <0xc00 0x100>;
diff --git a/arch/mips/boot/dts/ralink/mt7628a.dtsi b/arch/mips/boot/dts/ralink/mt7628a.dtsi
index 9ff7e8f..fe3fe9a 100644
--- a/arch/mips/boot/dts/ralink/mt7628a.dtsi
+++ b/arch/mips/boot/dts/ralink/mt7628a.dtsi
@@ -62,7 +62,7 @@
  			reg = <0x300 0x100>;
  		};
- uart0: uartlite@c00 {
+		uart0: serial0@c00 {
  			compatible = "ns16550a";
  			reg = <0xc00 0x100>;
@@ -75,7 +75,7 @@
  			reg-shift = <2>;
  		};
- uart1: uart1@d00 {
+		uart1: serial1@d00 {
  			compatible = "ns16550a";
  			reg = <0xd00 0x100>;
@@ -88,7 +88,7 @@
  			reg-shift = <2>;
  		};
- uart2: uart2@e00 {
+		uart2: serial2@e00 {
  			compatible = "ns16550a";
  			reg = <0xe00 0x100>;
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 9be8b08..f623ceb 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -54,7 +54,7 @@ static int dram_type;
static struct rt2880_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };
  static struct rt2880_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
-static struct rt2880_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };
+static struct rt2880_pmx_func serial_grp[] = { FUNC("serial", 0, 15, 2) };
  static struct rt2880_pmx_func mdio_grp[] = {
  	FUNC("mdio", MT7620_GPIO_MODE_MDIO, 22, 2),
  	FUNC("refclk", MT7620_GPIO_MODE_MDIO_REFCLK, 22, 2),
@@ -92,7 +92,7 @@ static struct rt2880_pmx_group mt7620a_pinmux_data[] = {
  	GRP("uartf", uartf_grp, MT7620_GPIO_MODE_UART0_MASK,
  		MT7620_GPIO_MODE_UART0_SHIFT),
  	GRP("spi", spi_grp, 1, MT7620_GPIO_MODE_SPI),
-	GRP("uartlite", uartlite_grp, 1, MT7620_GPIO_MODE_UART1),
+	GRP("serial", serial_grp, 1, MT7620_GPIO_MODE_UART1),
  	GRP_G("wdt", wdt_grp, MT7620_GPIO_MODE_WDT_MASK,
  		MT7620_GPIO_MODE_WDT_GPIO, MT7620_GPIO_MODE_WDT_SHIFT),
  	GRP_G("mdio", mdio_grp, MT7620_GPIO_MODE_MDIO_MASK,
@@ -530,8 +530,8 @@ void __init ralink_clk_init(void)
  		periph_rate = MHZ(40);
  		pcmi2s_rate = MHZ(480);
- ralink_clk_add("10000d00.uartlite", periph_rate);
-		ralink_clk_add("10000e00.uartlite", periph_rate);
+		ralink_clk_add("10000d00.serial0", periph_rate);
+		ralink_clk_add("10000e00.serial0", periph_rate);
  	} else {
  		cpu_pll_rate = mt7620_get_cpu_pll_rate(xtal_rate);
  		pll_rate = mt7620_get_pll_rate(xtal_rate, cpu_pll_rate);
@@ -566,9 +566,9 @@ void __init ralink_clk_init(void)
  	ralink_clk_add("10000a00.i2s", pcmi2s_rate);
  	ralink_clk_add("10000b00.spi", sys_rate);
  	ralink_clk_add("10000b40.spi", sys_rate);
-	ralink_clk_add("10000c00.uartlite", periph_rate);
-	ralink_clk_add("10000d00.uart1", periph_rate);
-	ralink_clk_add("10000e00.uart2", periph_rate);
+	ralink_clk_add("10000c00.serial0", periph_rate);
+	ralink_clk_add("10000d00.serial1", periph_rate);
+	ralink_clk_add("10000e00.serial2", periph_rate);
  	ralink_clk_add("10180000.wmac", xtal_rate);
if (IS_ENABLED(CONFIG_USB) && !is_mt76x8()) {

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