drm/g94/i2c: add aux channel interrupt driver (d78fa39a) · Commits · 戴 / test

drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c

+33 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,36 @@

		#include "nv50.h"

		void
		nv94_aux_stat(struct nouveau_i2c i2c, u32 hi, u32 lo, u32 rq, u32 *tx)
		{
		u32 intr = nv_rd32(i2c, 0x00e06c);
		u32 stat = nv_rd32(i2c, 0x00e068) & intr, i;
		for (i = 0, hi = lo = rq = tx = 0; i < 8; i++) {
		if ((stat & (1 << (i * 4)))) *hi \|= 1 << i;
		if ((stat & (2 << (i * 4)))) *lo \|= 1 << i;
		if ((stat & (4 << (i * 4)))) *rq \|= 1 << i;
		if ((stat & (8 << (i * 4)))) *tx \|= 1 << i;
		}
		nv_wr32(i2c, 0x00e06c, intr);
		}

		void
		nv94_aux_mask(struct nouveau_i2c *i2c, u32 type, u32 mask, u32 data)
		{
		u32 temp = nv_rd32(i2c, 0x00e068), i;
		for (i = 0; i < 8; i++) {
		if (mask & (1 << i)) {
		if (!(data & (1 << i))) {
		temp &= ~(type << (i * 4));
		continue;
		}
		temp \|= type << (i * 4);
		}
		}
		nv_wr32(i2c, 0x00e068, temp);
		}

		#define AUX_DBG(fmt, args...) nv_debug(aux, "AUXCH(%d): " fmt, ch, ##args)
		#define AUX_ERR(fmt, args...) nv_error(aux, "AUXCH(%d): " fmt, ch, ##args)

		@@ -273,4 +303,7 @@ nv94_i2c_oclass = &(struct nouveau_i2c_impl) {
		.fini = _nouveau_i2c_fini,
		},
		.sclass = nv94_i2c_sclass,
		.aux = 4,
		.aux_stat = nv94_aux_stat,
		.aux_mask = nv94_aux_mask,
		}.base;

+3 −0

Original line number	Diff line number	Diff line
		@@ -106,4 +106,7 @@ nvd0_i2c_oclass = &(struct nouveau_i2c_impl) {
		.fini = _nouveau_i2c_fini,
		},
		.sclass = nvd0_i2c_sclass,
		.aux = 4,
		.aux_stat = nv94_aux_stat,
		.aux_mask = nv94_aux_mask,
		}.base;

+3 −0

Original line number	Diff line number	Diff line
		@@ -73,4 +73,7 @@ struct nouveau_i2c_impl {
		void (aux_mask)(struct nouveau_i2c , u32, u32, u32);
		};

		void nv94_aux_stat(struct nouveau_i2c , u32 , u32 , u32 , u32 *);
		void nv94_aux_mask(struct nouveau_i2c *, u32, u32, u32);

		#endif