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---
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yaml
---
r: 354817
b: refs/heads/master
c: 12faa35
h: refs/heads/master
i:
  354815: c1e0d89
v: v3
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Tony Prisk authored and Greg Kroah-Hartman committed Jan 18, 2013
1 parent a50be20 commit 504d69e
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Showing 5 changed files with 128 additions and 28 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 962963e4ee23bc7518dfee754de5f20d35de71d9
refs/heads/master: 12faa35ae5cbfbd0d90e2103688e87ceb46c5886
40 changes: 36 additions & 4 deletions trunk/arch/arm/boot/dts/vt8500.dtsi
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Expand Up @@ -45,6 +45,38 @@
compatible = "fixed-clock";
clock-frequency = <24000000>;
};

clkuart0: uart0 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <1>;
};

clkuart1: uart1 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <2>;
};

clkuart2: uart2 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <3>;
};

clkuart3: uart3 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <4>;
};
};
};

Expand Down Expand Up @@ -83,28 +115,28 @@
compatible = "via,vt8500-uart";
reg = <0xd8200000 0x1040>;
interrupts = <32>;
clocks = <&ref24>;
clocks = <&clkuart0>;
};

uart@d82b0000 {
compatible = "via,vt8500-uart";
reg = <0xd82b0000 0x1040>;
interrupts = <33>;
clocks = <&ref24>;
clocks = <&clkuart1>;
};

uart@d8210000 {
compatible = "via,vt8500-uart";
reg = <0xd8210000 0x1040>;
interrupts = <47>;
clocks = <&ref24>;
clocks = <&clkuart2>;
};

uart@d82c0000 {
compatible = "via,vt8500-uart";
reg = <0xd82c0000 0x1040>;
interrupts = <50>;
clocks = <&ref24>;
clocks = <&clkuart3>;
};

rtc@d8100000 {
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60 changes: 54 additions & 6 deletions trunk/arch/arm/boot/dts/wm8505.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,54 @@
compatible = "fixed-clock";
clock-frequency = <24000000>;
};

clkuart0: uart0 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <1>;
};

clkuart1: uart1 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <2>;
};

clkuart2: uart2 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <3>;
};

clkuart3: uart3 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <4>;
};

clkuart4: uart4 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <22>;
};

clkuart5: uart5 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <23>;
};
};
};

Expand Down Expand Up @@ -96,42 +144,42 @@
compatible = "via,vt8500-uart";
reg = <0xd8200000 0x1040>;
interrupts = <32>;
clocks = <&ref24>;
clocks = <&clkuart0>;
};

uart@d82b0000 {
compatible = "via,vt8500-uart";
reg = <0xd82b0000 0x1040>;
interrupts = <33>;
clocks = <&ref24>;
clocks = <&clkuart1>;
};

uart@d8210000 {
compatible = "via,vt8500-uart";
reg = <0xd8210000 0x1040>;
interrupts = <47>;
clocks = <&ref24>;
clocks = <&clkuart2>;
};

uart@d82c0000 {
compatible = "via,vt8500-uart";
reg = <0xd82c0000 0x1040>;
interrupts = <50>;
clocks = <&ref24>;
clocks = <&clkuart3>;
};

uart@d8370000 {
compatible = "via,vt8500-uart";
reg = <0xd8370000 0x1040>;
interrupts = <31>;
clocks = <&ref24>;
clocks = <&clkuart4>;
};

uart@d8380000 {
compatible = "via,vt8500-uart";
reg = <0xd8380000 0x1040>;
interrupts = <30>;
clocks = <&ref24>;
clocks = <&clkuart5>;
};

rtc@d8100000 {
Expand Down
20 changes: 18 additions & 2 deletions trunk/arch/arm/boot/dts/wm8650.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,22 @@
reg = <0x204>;
};

clkuart0: uart0 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <1>;
};

clkuart1: uart1 {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
clocks = <&ref24>;
enable-reg = <0x250>;
enable-bit = <2>;
};

arm: arm {
#clock-cells = <0>;
compatible = "via,vt8500-device-clock";
Expand Down Expand Up @@ -128,14 +144,14 @@
compatible = "via,vt8500-uart";
reg = <0xd8200000 0x1040>;
interrupts = <32>;
clocks = <&ref24>;
clocks = <&clkuart0>;
};

uart@d82b0000 {
compatible = "via,vt8500-uart";
reg = <0xd82b0000 0x1040>;
interrupts = <33>;
clocks = <&ref24>;
clocks = <&clkuart1>;
};

rtc@d8100000 {
Expand Down
34 changes: 19 additions & 15 deletions trunk/drivers/tty/serial/vt8500_serial.c
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Original file line number Diff line number Diff line change
Expand Up @@ -584,6 +584,23 @@ static int vt8500_serial_probe(struct platform_device *pdev)
if (!vt8500_port)
return -ENOMEM;

vt8500_port->uart.membase = devm_request_and_ioremap(&pdev->dev, mmres);
if (!vt8500_port->uart.membase)
return -EADDRNOTAVAIL;

vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0);
if (IS_ERR(vt8500_port->clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = -EINVAL;
goto err;
}

ret = clk_prepare_enable(vt8500_port->clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
goto err;
}

vt8500_port->uart.type = PORT_VT8500;
vt8500_port->uart.iotype = UPIO_MEM;
vt8500_port->uart.mapbase = mmres->start;
Expand All @@ -593,25 +610,11 @@ static int vt8500_serial_probe(struct platform_device *pdev)
vt8500_port->uart.line = port;
vt8500_port->uart.dev = &pdev->dev;
vt8500_port->uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;

vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0);
if (vt8500_port->clk) {
vt8500_port->uart.uartclk = clk_get_rate(vt8500_port->clk);
} else {
/* use the default of 24Mhz if not specified and warn */
pr_warn("%s: serial clock source not specified\n", __func__);
vt8500_port->uart.uartclk = 24000000;
}
vt8500_port->uart.uartclk = clk_get_rate(vt8500_port->clk);

snprintf(vt8500_port->name, sizeof(vt8500_port->name),
"VT8500 UART%d", pdev->id);

vt8500_port->uart.membase = devm_request_and_ioremap(&pdev->dev, mmres);
if (!vt8500_port->uart.membase) {
ret = -EADDRNOTAVAIL;
goto err;
}

vt8500_uart_ports[port] = vt8500_port;

uart_add_one_port(&vt8500_uart_driver, &vt8500_port->uart);
Expand All @@ -630,6 +633,7 @@ static int vt8500_serial_remove(struct platform_device *pdev)
struct vt8500_port *vt8500_port = platform_get_drvdata(pdev);

platform_set_drvdata(pdev, NULL);
clk_disable_unprepare(vt8500_port->clk);
uart_remove_one_port(&vt8500_uart_driver, &vt8500_port->uart);
kfree(vt8500_port);

Expand Down

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