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Message-ID: <9a1baddd-830d-364b-5106-c33bb64d516f@quicinc.com>
Date: Fri, 3 Nov 2023 21:00:30 +0530
From: Mukesh Ojha <quic_mojha@...cinc.com>
To: Atul Dhudase <quic_adhudase@...cinc.com>, <agross@...nel.org>,
<andersson@...nel.org>, <konrad.dybcio@...aro.org>,
<swboyd@...omium.org>, <isaacm@...eaurora.org>,
<dianders@...omium.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] soc: qcom: llcc: Fix dis_cap_alloc and retain_on_pc
configuration
On 11/3/2023 4:47 PM, Mukesh Ojha wrote:
>
>
> On 11/3/2023 4:27 PM, Atul Dhudase wrote:
>> While programming dis_cap_alloc and retain_on_pc, set a bit
>> corresponding to a specific SCID without disturbing the
>> previously configured bits.
>>
>> Fixes: c14e64b46944 ("soc: qcom: llcc: Support chipsets that can write
>> to llcc")
>> Signed-off-by: Atul Dhudase <quic_adhudase@...cinc.com>
>> ---
>> drivers/soc/qcom/llcc-qcom.c | 8 ++++----
>> 1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
>> index 674abd0d6700..509d972c1bd9 100644
>> --- a/drivers/soc/qcom/llcc-qcom.c
>> +++ b/drivers/soc/qcom/llcc-qcom.c
>> @@ -941,15 +941,15 @@ static int _qcom_llcc_cfg_program(const struct
>> llcc_slice_config *config,
>> u32 disable_cap_alloc, retain_pc;
>>
>> disable_cap_alloc = config->dis_cap_alloc << config->slice_id;
>> - ret = regmap_write(drv_data->bcast_regmap,
>> - LLCC_TRP_SCID_DIS_CAP_ALLOC, disable_cap_alloc);
>> + ret = regmap_update_bits(drv_data->bcast_regmap,
>> LLCC_TRP_SCID_DIS_CAP_ALLOC,
>> + BIT(config->slice_id), disable_cap_alloc);
>> if (ret)
>> return ret;
>>
>> if (drv_data->version < LLCC_VERSION_4_1_0_0) {
>> retain_pc = config->retain_on_pc << config->slice_id;
>> - ret = regmap_write(drv_data->bcast_regmap,
>> - LLCC_TRP_PCB_ACT, retain_pc);
>> + ret = regmap_update_bits(drv_data->bcast_regmap,
>> LLCC_TRP_PCB_ACT,
>> + BIT(config->slice_id), retain_pc);
>
> Good catch, LGTM
Forgot to tell.,
Please tag this to stable as well.
Reviewed-by: Mukesh Ojha <quic_mojha@...cinc.com>
-Mukesh
>
> Thanks
> -Mukesh
>
>> if (ret)
>> return ret;
>> }
>> --
>> 2.25.1
>>
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