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drivers/intel/gma/acpi: Refine some cosmetics 

TEST=Booted ThinkPad X201s, backlight control still works.

Change-Id: Ie3b00daedc9de05abef0cae9cea99dc7acf1ff62
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39727
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Nico Huber 2020-03-21 18:47:24 +01:00 committed by Patrick Georgi
parent e98f6af77b
commit 53c1717dc1
1 changed files with 16 additions and 10 deletions
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26
src/drivers/intel/gma/acpi.c
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@ -29,39 +29,45 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
acpigen_write_scope("\\_SB.PCI0.GFX0"); acpigen_write_scope("\\_SB.PCI0.GFX0");
/* /*
Method (_DOD, 0) Method (_DOD, 0)
{ {
Return (Package() { Return (Package() {
0x5a5a5a5a, 0x5a5a5a5a,
0x5a5a5a5a, 0x5a5a5a5a,
0x5a5a5a5a 0x5a5a5a5a
}) })
} }
*/ */
acpigen_write_method("_DOD", 0); acpigen_write_method("_DOD", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_write_package(conf->ndid);
acpigen_emit_byte(RETURN_OP);
acpigen_write_package(conf->ndid);
for (i = 0; i < conf->ndid; i++) { for (i = 0; i < conf->ndid; i++) {
acpigen_write_dword (conf->did[i] | 0x80010000); acpigen_write_dword (conf->did[i] | 0x80010000);
} }
acpigen_pop_len(); /* End Package. */ acpigen_pop_len(); /* End Package. */
acpigen_pop_len(); /* End Method. */ acpigen_pop_len(); /* End Method. */
for (i = 0; i < conf->ndid; i++) { for (i = 0; i < conf->ndid; i++) {
char name[10]; char name[10];
char *ptr; char *ptr;
int kind; int kind;
kind = (conf->did[i] >> 8) & 0xf; kind = (conf->did[i] >> 8) & 0xf;
if (kind >= ARRAY_SIZE(names)) { if (kind >= ARRAY_SIZE(names)) {
kind = 0; kind = 0;
} }
strcpy(name, names[kind]); strcpy(name, names[kind]);
for (ptr = name; *ptr; ptr++); for (ptr = name; *ptr; ptr++);
*ptr++ = counters[kind] + '0'; *ptr++ = counters[kind] + '0';
*ptr++ = '\0'; *ptr++ = '\0';
counters[kind]++; counters[kind]++;
/* Device (LCD0) */
acpigen_write_device(name); acpigen_write_device(name);
/* Name (_ADR, 0x0410) */ /* Name (_ADR, 0x0410) */
acpigen_write_name_dword("_ADR", conf->did[i] & 0xffff); acpigen_write_name_dword("_ADR", conf->did[i] & 0xffff);
@ -74,7 +80,7 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
} }
*/ */
acpigen_write_method("_BCL", 0); acpigen_write_method("_BCL", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */ acpigen_emit_byte(RETURN_OP);
acpigen_emit_namestring("^^XBCL"); acpigen_emit_namestring("^^XBCL");
acpigen_pop_len(); acpigen_pop_len();
@ -86,7 +92,7 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
*/ */
acpigen_write_method("_BCM", 1); acpigen_write_method("_BCM", 1);
acpigen_emit_namestring("^^XBCM"); acpigen_emit_namestring("^^XBCM");
acpigen_emit_byte(0x68); /* Arg0Op. */ acpigen_emit_byte(ARG0_OP);
acpigen_pop_len(); acpigen_pop_len();
/* /*
@ -96,7 +102,7 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
} }
*/ */
acpigen_write_method("_BQC", 0); acpigen_write_method("_BQC", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */ acpigen_emit_byte(RETURN_OP);
acpigen_emit_namestring("^^XBQC"); acpigen_emit_namestring("^^XBQC");
acpigen_pop_len(); acpigen_pop_len();
} }
@ -136,8 +142,8 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
acpigen_write_method("_DSS", 1); acpigen_write_method("_DSS", 1);
acpigen_pop_len(); acpigen_pop_len();
acpigen_pop_len(); acpigen_pop_len(); /* End Device. */
} }
acpigen_pop_len(); acpigen_pop_len(); /* End Scope. */
} }