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From:   Kevin Hilman <khilman@kernel.org>
To:     Markus Schneider-Pargmann <msp@baylibre.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org,
        Alexandre Mergnat <amergnat@baylibre.com>
Subject: Re: [PATCH] clk: mediatek: mt8365: Fix inverted topclk operations
In-Reply-To: <20230523114618.laajn2et5nbcxszv@blmsp>
References: <20230511133226.913600-1-msp@baylibre.com>
 <20230523114618.laajn2et5nbcxszv@blmsp>
Date:   Fri, 26 May 2023 09:45:47 -0700
Message-ID: <7hsfbjxcqs.fsf@baylibre.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Markus Schneider-Pargmann <msp@baylibre.com> writes:

> just wanted to ask if I need to do something specific for it to go into
> a rc? Sorry if I missed doing something for that, I haven't had to fix
> something in an rc that often before.

I think the  Fixes tag is enough to indicate that.

Steven, is there still time for this fix be queued up for v6.4-rc?

Thanks,

Kevin

> On Thu, May 11, 2023 at 03:32:26PM +0200, Markus Schneider-Pargmann wrote:
>> The given operations are inverted for the wrong registers which makes
>> multiple of the mt8365 hardware units unusable. In my setup at least usb
>> did not work.
>> 
>> Fixed by swapping the operations with the inverted ones.
>> 
>> Reported-by: Alexandre Mergnat <amergnat@baylibre.com>
>> Fixes: 905b7430d3cc ("clk: mediatek: mt8365: Convert simple_gate to mtk_gate clocks")
>> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
>> ---
>>  drivers/clk/mediatek/clk-mt8365.c | 6 +++---
>>  1 file changed, 3 insertions(+), 3 deletions(-)
>> 
>> diff --git a/drivers/clk/mediatek/clk-mt8365.c b/drivers/clk/mediatek/clk-mt8365.c
>> index 6b4e193f648d..6d785ec5754d 100644
>> --- a/drivers/clk/mediatek/clk-mt8365.c
>> +++ b/drivers/clk/mediatek/clk-mt8365.c
>> @@ -583,15 +583,15 @@ static const struct mtk_gate_regs top2_cg_regs = {
>>  
>>  #define GATE_TOP0(_id, _name, _parent, _shift)			\
>>  	GATE_MTK(_id, _name, _parent, &top0_cg_regs,		\
>> -		 _shift, &mtk_clk_gate_ops_no_setclr_inv)
>> +		 _shift, &mtk_clk_gate_ops_no_setclr)
>>  
>>  #define GATE_TOP1(_id, _name, _parent, _shift)			\
>>  	GATE_MTK(_id, _name, _parent, &top1_cg_regs,		\
>> -		 _shift, &mtk_clk_gate_ops_no_setclr)
>> +		 _shift, &mtk_clk_gate_ops_no_setclr_inv)
>>  
>>  #define GATE_TOP2(_id, _name, _parent, _shift)			\
>>  	GATE_MTK(_id, _name, _parent, &top2_cg_regs,		\
>> -		 _shift, &mtk_clk_gate_ops_no_setclr)
>> +		 _shift, &mtk_clk_gate_ops_no_setclr_inv)
>>  
>>  static const struct mtk_gate top_clk_gates[] = {
>>  	GATE_TOP0(CLK_TOP_CONN_32K, "conn_32k", "clk32k", 10),
>> -- 
>> 2.40.1
>>