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Commit 02faec09 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nv50: parse/use some more de-magiced parts of gpio table entries 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 2535d71c

drivers/gpu/drm/nouveau/nouveau_bios.c

+9 −14
Original line number Diff line number Diff line
@@ -2595,10 +2595,7 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 
		r = nv50_gpio_reg[gpio->line >> 3];

		s = (gpio->line & 0x07) << 2;

		v = bios_rd32(bios, r) & ~(0x00000003 << s);

		if (gpio->entry & 0x01000000)

			v |= (((gpio->entry & 0x60000000) >> 29) ^ 2) << s;

		else

			v |= (((gpio->entry & 0x18000000) >> 27) ^ 2) << s;

		v |= (gpio->state[gpio->state_default] ^ 2) << s;

		bios_wr32(bios, r, v);



		r = nv50_gpio_ctl[gpio->line >> 4];
@@ -5078,21 +5075,19 @@ parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset) 
static void

parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset)

{

	uint32_t entry = ROM32(bios->data[offset]);

	struct dcb_gpio_entry *gpio;

	uint32_t ent = ROM32(bios->data[offset]);

	uint8_t line = ent & 0x1f,

		tag = ent >> 8 & 0xff;



	if (tag == 0xff)

	if ((entry & 0x0000ff00) == 0x0000ff00)

		return;



	gpio = new_gpio_entry(bios);



	/* Currently unused, we may need more fields parsed at some

	 * point. */

	gpio->tag = tag;

	gpio->line = line;

	gpio->entry = ent;

	gpio->tag = (entry & 0x0000ff00) >> 8;

	gpio->line = (entry & 0x0000001f) >> 0;

	gpio->state_default = (entry & 0x01000000) >> 24;

	gpio->state[0] = (entry & 0x18000000) >> 27;

	gpio->state[1] = (entry & 0x60000000) >> 29;

	gpio->entry = entry;

}



static void

drivers/gpu/drm/nouveau/nouveau_bios.h

+2 −0
Original line number Diff line number Diff line
@@ -50,6 +50,8 @@ struct dcb_gpio_entry { 
	int line;

	bool invert;

	uint32_t entry;

	uint8_t state_default;

	uint8_t state[2];

};



struct dcb_gpio_table {