2017-09-01 14:53:12

by Harvey Hunt

[permalink] [raw]
Subject: [PATCH] MIPS: mt7620: Rename uartlite to serial

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 <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---
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 {
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()) {
--
2.7.4


2017-09-06 07:53:58

by John Crispin

[permalink] [raw]
Subject: Re: [PATCH] MIPS: mt7620: Rename uartlite to serial

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 <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> ---
> 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()) {

2017-09-06 09:45:57

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [PATCH] MIPS: mt7620: Rename uartlite to serial

On Fri, Sep 1, 2017 at 4:53 PM, Harvey Hunt <[email protected]> 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 <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> ---
> 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 {

Device node names should use generic names and no numerical suffix
=> "serial@c00"

> 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 {

uart0: serial@c00

> compatible = "ns16550a";
> reg = <0xc00 0x100>;
>
> @@ -75,7 +75,7 @@
> reg-shift = <2>;
> };
>
> - uart1: uart1@d00 {
> + uart1: serial1@d00 {

uart1: serial@d00

> compatible = "ns16550a";
> reg = <0xd00 0x100>;
>
> @@ -88,7 +88,7 @@
> reg-shift = <2>;
> };
>
> - uart2: uart2@e00 {
> + uart2: serial2@e00 {

uart2: serial@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);

Ugh, you're relying on the actual node names in DT?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds