[PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c
From: Shawn Guo <hidden>
Date: 2012-07-28 08:02:50
Also in:
linux-devicetree, linux-i2c
Possibly related (same subject, not in this thread)
- 2012-07-22 · Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c · Wolfram Sang <hidden>
- 2012-07-21 · Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c · Marek Vasut <hidden>
- 2012-07-21 · Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c · Wolfram Sang <hidden>
- 2012-07-21 · Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c · Marek Vasut <hidden>
- 2012-07-21 · Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c · Wolfram Sang <hidden>
On Sat, Jul 21, 2012 at 02:44:06PM +0200, Wolfram Sang wrote:
Yet, if I know the compatible property for the mxs I2C driver, and also know the CPU type (be it MX23 or MX28), I can deduce from that a lot of information, including DMA channel. That is fix. Why encode it?
The driver shouldn't know the CPU type but just the IP type/version. We can definitely have "fsl,imx23-i2c" and "fsl,imx28-i2c" compatible strings for iMX23 and iMX28 respectively if the I2C controller on these two SoC differs on the IP inside aspects. But we shouldn't do that for IO region, interrupt number, DMA channel such differences at SoC integration level. -- Regards, Shawn