clk: remove u300 driver

Clock bindings for ST-Ericsson U300 System Controller Clocks

Bindings for the gated system controller clocks:

Required properties:

- compatible: must be "stericsson,u300-syscon-clk"

- #clock-cells: must be <0>

- clock-type: specifies the type of clock:

  0 = slow clock

  1 = fast clock

  2 = rest/remaining clock

- clock-id: specifies the clock in the type range

Optional properties:

- clocks: parent clock(s)

The available clocks per type are as follows:

Type:  ID:   Clock:

-------------------

0      0     Slow peripheral bridge clock

0      1     UART0 clock

0      4     GPIO clock

0      6     RTC clock

0      7     Application timer clock

0      8     Access timer clock

1      0     Fast peripheral bridge clock

1      1     I2C bus 0 clock

1      2     I2C bus 1 clock

1      5     MMC interface peripheral (silicon) clock

1      6     SPI clock

2      3     CPU clock

2      4     DMA controller clock

2      5     External Memory Interface (EMIF) clock

2      6     NAND flask interface clock

2      8     XGAM graphics engine clock

2      9     Shared External Memory Interface (SEMI) clock

2      10    AHB Subsystem Bridge clock

2      12    Interrupt controller clock

Example:

gpio_clk: gpio_clk@13M {

	#clock-cells = <0>;

	compatible = "stericsson,u300-syscon-clk";

	clock-type = <0>; /* Slow */

	clock-id = <4>;

	clocks = <&slow_clk>;

};

gpio: gpio@c0016000 {

	compatible = "stericsson,gpio-coh901";

	(...)

	clocks = <&gpio_clk>;

};

Bindings for the MMC/SD card clock:

Required properties:

- compatible: must be "stericsson,u300-syscon-mclk"

- #clock-cells: must be <0>

Optional properties:

- clocks: parent clock(s)

mmc_mclk: mmc_mclk {

	#clock-cells = <0>;

	compatible = "stericsson,u300-syscon-mclk";

	clocks = <&mmc_pclk>;

};

mmcsd: mmcsd@c0001000 {

	compatible = "arm,pl18x", "arm,primecell";

	clocks = <&mmc_pclk>, <&mmc_mclk>;

	clock-names = "apb_pclk", "mclk";

	(...)

};

obj-$(CONFIG_COMMON_CLK_STM32H7)	+= clk-stm32h7.o

obj-$(CONFIG_COMMON_CLK_STM32MP157)	+= clk-stm32mp1.o

obj-$(CONFIG_CLK_TWL6040)		+= clk-twl6040.o

obj-$(CONFIG_ARCH_U300)			+= clk-u300.o

obj-$(CONFIG_ARCH_VT8500)		+= clk-vt8500.o

obj-$(CONFIG_COMMON_CLK_VC5)		+= clk-versaclock5.o

obj-$(CONFIG_COMMON_CLK_WM831X)		+= clk-wm831x.o

void __init u300_clk_init(void __iomem *base);