Re: [PATCH v9 3/4] i2c: tegra: Add support for SW mutex register

From: Jon Hunter

Date: Tue Oct 28 2025 - 12:14:21 EST



On 28/10/2025 12:54, Akhil R wrote:
On Fri, 24 Oct 2025 16:42:06 +0100, Jon Hunter wrote:
On 01/10/2025 07:47, Kartik Rajput wrote:
static void tegra_i2c_mask_irq(struct tegra_i2c_dev *i2c_dev, u32 mask)
{
u32 int_mask;
@@ -1432,6 +1512,10 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
return ret;
}
+ ret = tegra_i2c_mutex_lock(i2c_dev);
+ if (ret)
+ return ret;
+

I wonder if it would be better to have a wrapper function around
tegra_i2c_xfer() called tegra264_i2c_xfer() that is only used for
Tegra264 platforms and invokes these sw-mutex functions?

Wouldn't this only add another 'if' condition to tegra_i2c_xfer()?
And probably making it more complex? Or am I missing something?

I was thinking we could define a tegra264_i2c_algo but I guess we need another if condition at some point some where. So let's leave as-is for now.

Jon

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