RE: [PATCH v2] drm/ast: Disable fast reset after DRAM initial

2021-01-18 Thread Kuo-Hsiang Chou
-Original Message- From: Thomas Zimmermann [mailto:tzimmerm...@suse.de] Sent: Monday, January 18, 2021 5:06 PM To: Kuo-Hsiang Chou ; dri-de...@lists.freedesktop.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] drm/ast: Disable fast reset after DRAM initial Hi, Thomas, Hi Am

Re: [PATCH v2] drm/ast: Disable fast reset after DRAM initial

2021-01-18 Thread Thomas Zimmermann
Hi Am 12.01.21 um 08:58 schrieb KuoHsiang Chou: [Bug][AST2500] V1: When AST2500 acts as stand-alone VGA so that DRAM and DVO initialization have to be achieved by VGA driver with P2A (PCI to AHB) enabling. However, HW suggests disable Fast reset mode after DRAM initializaton, because fast

[PATCH v2] drm/ast: Disable fast reset after DRAM initial

2021-01-12 Thread KuoHsiang Chou
[Bug][AST2500] V1: When AST2500 acts as stand-alone VGA so that DRAM and DVO initialization have to be achieved by VGA driver with P2A (PCI to AHB) enabling. However, HW suggests disable Fast reset mode after DRAM initializaton, because fast reset mode is mainly designed for ARM ICE debugger.