From 384e9aed8c477922c960e2cbd429bd3a15b371de Mon Sep 17 00:00:00 2001 From: Evgeny Zinoviev Date: Thu, 30 Aug 2018 02:18:48 +0300 Subject: mb/lenovo: Support dual graphics for xx20/xx30 ThinkPads Add CMOS option that allows to use both integrated and discrete GPU. Tested on ThinkPad W530. Change-Id: I8842fef0fa1235eb91abf6b7e655ed4d8598adc7 Signed-off-by: Evgeny Zinoviev Reviewed-on: https://review.coreboot.org/28393 Reviewed-by: Patrick Rudolph Tested-by: build bot (Jenkins) --- src/drivers/lenovo/hybrid_graphics/romstage.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) (limited to 'src/drivers/lenovo') diff --git a/src/drivers/lenovo/hybrid_graphics/romstage.c b/src/drivers/lenovo/hybrid_graphics/romstage.c index 8814916872..35cb384301 100644 --- a/src/drivers/lenovo/hybrid_graphics/romstage.c +++ b/src/drivers/lenovo/hybrid_graphics/romstage.c @@ -20,7 +20,6 @@ #include #include #include -#include #include "hybrid_graphics.h" #include "chip.h" @@ -87,18 +86,9 @@ void early_hybrid_graphics(bool *enable_igd, bool *enable_peg) set_gpio(config->dgpu_power_gpio, config->dgpu_power_off_lvl); } else if (config->has_thinker1) { - const size_t power_en = !!(pmh7_register_read(0x50) & 0x08); - if (*enable_peg && !power_en) { - pmh7_register_clear_bit(0x50, 7); // DGPU_RST - pmh7_register_set_bit(0x50, 3); // DGPU_PWR - mdelay(10); - pmh7_register_set_bit(0x50, 7); // DGPU_RST - mdelay(50); - } else if (!*enable_peg && power_en) { - pmh7_register_clear_bit(0x50, 7); // DGPU_RST - udelay(100); - pmh7_register_clear_bit(0x50, 3); // DGPU_PWR - } + bool power_en = pmh7_dgpu_power_state(); + if (*enable_peg != power_en) + pmh7_dgpu_power_enable(!power_en); } else { printk(BIOS_ERR, "Hybrid graphics:" " FIXME: dGPU power handling not implemented\n"); -- cgit v1.2.3